removing possible invalid check
removing possible invalid check

Checking for a link local address to determine if a node is on-link is
probably not a valid assumption in most wireless networks.

phiros/RIOT,benoit-canet/RIOT,d00616/RIOT,lazytech-org/RIOT,1blankz7/RIOT,luciotorre/RIOT,jhollister/RIOT,changbiao/RIOT,jremmert-phytec-iot/RIOT,adjih/RIOT,mfrey/RIOT,beurdouche/RIOT,biboc/RIOT,RubikonAlpha/RIOT,haoyangyu/RIOT,kerneltask/RIOT,khhhh/RIOT,fnack/RIOT,thomaseichinger/RIOT,zhuoshuguo/RIOT,katezilla/RIOT,dhruvvyas90/RIOT,l3nko/RIOT,altairpearl/RIOT,brettswann/RIOT,jremmert-phytec-iot/RIOT,dailab/RIOT,phiros/RIOT,sumanpanchal/RIOT,rfswarm2/RIOT,miri64/RIOT,nsol-nmsu/RIOT,wentaoshang/RIOT,Hyungsin/RIOT-OS,automote/RIOT,EmuxEvans/RIOT,shady33/RIOT,kerneltask/RIOT,hamilton-mote/RIOT-OS,haoyangyu/RIOT,msolters/RIOT,spium/IoT-RIOT,patkan/RIOT,latsku/RIOT,asanka-code/RIOT,Ell-i/RIOT,wentaoshang/RIOT,locicontrols/RIOT,avmelnikoff/RIOT,rousselk/RIOT,changbiao/RIOT,brettswann/RIOT,koenning/RIOT,dkm/RIOT,daniel-k/RIOT,centurysys/RIOT,adjih/RIOT,msolters/RIOT,kaspar030/RIOT,watr-li/RIOT,Darredevil/RIOT,ximus/RIOT,alignan/RIOT,luciotorre/RIOT,jfischer-phytec-iot/RIOT,msolters/RIOT,asanka-code/RIOT,automote/RIOT,shady33/RIOT,biboc/RIOT,rakendrathapa/RIOT,PSHIVANI/Riot-Code,automote/RIOT,mtausig/RIOT,MohmadAyman/RIOT,Yonezawa-T2/RIOT,avmelnikoff/RIOT,tfar/RIOT,aeneby/RIOT,Lexandro92/RIOT-CoAP,LudwigKnuepfer/RIOT,ros2/ros2_embedded_riot,sumanpanchal/RIOT,LudwigOrtmann/RIOT,changbiao/RIOT,OTAkeys/RIOT,centurysys/RIOT,Lotterleben/RIOT,stevenj/RIOT,dailab/RIOT,rfswarm2/RIOT,RIOT-OS/RIOT,robixnai/RIOT,chris-wood/RIOT,plushvoxel/RIOT,kb2ma/RIOT,jfischer-phytec-iot/RIOT,daniel-k/RIOT,kushalsingh007/RIOT,robixnai/RIOT,spium/IoT-RIOT,basilfx/RIOT,wentaoshang/RIOT,josephnoir/RIOT,yogo1212/RIOT,kaspar030/RIOT,ntrtrung/RIOT,spium/IoT-RIOT,asanka-code/RIOT,OlegHahm/RIOT,kaleb-himes/RIOT,jferreir/RIOT,JensErdmann/RIOT,rakendrathapa/RIOT,x3ro/RIOT,dkm/RIOT,ntrtrung/RIOT,x3ro/RIOT,kushalsingh007/RIOT,adrianghc/RIOT,MohmadAyman/RIOT,MonsterCode8000/RIOT,adrianghc/RIOT,JensErdmann/RIOT,bartfaizoltan/RIOT,openkosmosorg/RIOT,lazytech-org/RIOT,PSHIVANI/Riot-Code,ks156/RIOT,yogo1212/RIOT,abp719/RIOT,kb2ma/RIOT,zhuoshuguo/RIOT,jferreir/RIOT,stevenj/RIOT,Ell-i/RIOT,watr-li/RIOT,RubikonAlpha/RIOT,ntrtrung/RIOT,neumodisch/RIOT,fnack/RIOT,marcosalm/RIOT,immesys/RiSyn,alex1818/RIOT,rfuentess/RIOT,immesys/RiSyn,openkosmosorg/RIOT,LudwigKnuepfer/RIOT,jbeyerstedt/RIOT-OTA-update,lebrush/RIOT,jferreir/RIOT,JensErdmann/RIOT,ThanhVic/RIOT,ks156/RIOT,herrfz/RIOT,BytesGalore/PetersRIOT,latsku/RIOT,jhollister/RIOT,RBartz/RIOT,d00616/RIOT,mfrey/RIOT,immesys/RiSyn,latsku/RIOT,Josar/RIOT,yogo1212/RIOT,benoit-canet/RIOT,jfischer-phytec-iot/RIOT,rfuentess/RIOT,kaleb-himes/RIOT,alignan/RIOT,syin2/RIOT,roberthartung/RIOT,kb2ma/RIOT,Yonezawa-T2/RIOT,rajma996/RIOT,thomaseichinger/RIOT,kerneltask/RIOT,attdona/RIOT,katezilla/RIOT,DipSwitch/RIOT,rfuentess/RIOT,plushvoxel/RIOT,thiagohd/RIOT,MarkXYang/RIOT,roberthartung/RIOT,sumanpanchal/RIOT,abp719/RIOT,tdautc19841202/RIOT,Lotterleben/RIOT,tfar/RIOT,daniel-k/RIOT,mziegert/RIOT,herrfz/RIOT-old,sumanpanchal/RIOT,binarylemon/RIOT,authmillenon/RIOT,Lotterleben/RIOT,haoyangyu/RIOT,yogo1212/RIOT,OlegHahm/RIOT,khhhh/RIOT,Ell-i/RIOT,thomaseichinger/RIOT,kushalsingh007/RIOT,gebart/RIOT,dhruvvyas90/RIOT,avmelnikoff/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,attdona/RIOT,FrancescoErmini/RIOT,josephnoir/RIOT,dkm/RIOT,mfrey/RIOT,smlng/RIOT,rousselk/RIOT,alex1818/RIOT,kaspar030/RIOT,neumodisch/RIOT,TobiasFredersdorf/RIOT,gbarnett/RIOT,malosek/RIOT,Ell-i/RIOT,ros2/ros2_embedded_riot,BytesGalore/RIOT,rajma996/RIOT,cladmi/RIOT,khhhh/RIOT,PSHIVANI/Riot-Code,thiagohd/RIOT,msolters/RIOT,A-Paul/RIOT,tfar/RIOT,biboc/RIOT,kbumsik/RIOT,abp719/RIOT,RubikonAlpha/RIOT,adjih/RIOT,MarkXYang/RIOT,herrfz/RIOT,alignan/RIOT,TobiasFredersdorf/RIOT,gebart/RIOT,kaleb-himes/RIOT,RBartz/RIOT,AnonMall/RIOT,authmillenon/RIOT,lebrush/RIOT,Lexandro92/RIOT-CoAP,avmelnikoff/RIOT,zhuoshuguo/RIOT,Darredevil/RIOT,attdona/RIOT,emmanuelsearch/RIOT,spium/IoT-RIOT,BytesGalore/RIOT,miri64/RIOT,marcosalm/RIOT,dhruvvyas90/RIOT,kushalsingh007/RIOT,authmillenon/RIOT,marcosalm/RIOT,Osblouf/RIOT,adjih/RIOT,kYc0o/RIOT,abp719/RIOT,basilfx/RIOT,ros2/ros2_embedded_riot,stevenj/RIOT,patkan/RIOT,authmillenon/RIOT,jremmert-phytec-iot/RIOT,fnack/RIOT,roberthartung/RIOT,malosek/RIOT,OTAkeys/RIOT,neiljay/RIOT,jasonatran/RIOT,arvindpdmn/RIOT,phiros/RIOT,AnonMall/RIOT,malosek/RIOT,rfswarm2/RIOT,locicontrols/RIOT,miri64/RIOT,sumanpanchal/RIOT,BytesGalore/PetersRIOT,koenning/RIOT,josephnoir/RIOT,emmanuelsearch/RIOT,rfswarm/RIOT,lebrush/RIOT,adrianghc/RIOT,mfrey/RIOT,LudwigKnuepfer/RIOT,gautric/RIOT,binarylemon/RIOT,MohmadAyman/RIOT,sgso/RIOT,AnonMall/RIOT,Darredevil/RIOT,rajma996/RIOT,DipSwitch/RIOT,jasonatran/RIOT,lazytech-org/RIOT,gautric/RIOT,JensErdmann/RIOT,latsku/RIOT,toonst/RIOT,cladmi/RIOT,kerneltask/RIOT,alex1818/RIOT,nsol-nmsu/RIOT,alex1818/RIOT,brettswann/RIOT,rakendrathapa/RIOT,spium/IoT-RIOT,neumodisch/RIOT,Lotterleben/RIOT,Ell-i/RIOT,RIOT-OS/RIOT,jbeyerstedt/RIOT-OTA-update,bartfaizoltan/RIOT,1blankz7/RIOT,kaspar030/RIOT,ros2/ros2_embedded_riot,jferreir/RIOT,beurdouche/RIOT,Hyungsin/RIOT-OS,shady33/RIOT,patkan/RIOT,herrfz/RIOT-old,hamilton-mote/RIOT-OS,rakendrathapa/RIOT,Hyungsin/RIOT-OS,malosek/RIOT,x3ro/RIOT,chris-wood/RIOT,syin2/RIOT,changbiao/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,BytesGalore/PetersRIOT,attdona/RIOT,Yonezawa-T2/RIOT,openkosmosorg/RIOT,locicontrols/RIOT,d00616/RIOT,Darredevil/RIOT,gautric/RIOT,benoit-canet/RIOT,koenning/RIOT,Osblouf/RIOT,aeneby/RIOT,ant9000/RIOT,TobiasFredersdorf/RIOT,kbumsik/RIOT,MarkXYang/RIOT,DipSwitch/RIOT,robixnai/RIOT,arvindpdmn/RIOT,patkan/RIOT,emmanuelsearch/RIOT,alignan/RIOT,RubikonAlpha/RIOT,hamilton-mote/RIOT-OS,emmanuelsearch/RIOT,ntrtrung/RIOT,rfswarm/RIOT,adjih/RIOT,OTAkeys/RIOT,MonsterCode8000/RIOT,Lexandro92/RIOT-CoAP,shady33/RIOT,FrancescoErmini/RIOT,OTAkeys/RIOT,dkm/RIOT,mtausig/RIOT,Osblouf/RIOT,nsol-nmsu/RIOT,arvindpdmn/RIOT,ximus/RIOT,Lexandro92/RIOT-CoAP,ant9000/RIOT,altairpearl/RIOT,jremmert-phytec-iot/RIOT,rfswarm2/RIOT,ant9000/RIOT,rfswarm2/RIOT,l3nko/RIOT,d00616/RIOT,sgso/RIOT,yogo1212/RIOT,JensErdmann/RIOT,haoyangyu/RIOT,LudwigKnuepfer/RIOT,mtausig/RIOT,ntrtrung/RIOT,neiljay/RIOT,ximus/RIOT,d00616/RIOT,herrfz/RIOT,mfrey/RIOT,ximus/RIOT,dhruvvyas90/RIOT,changbiao/RIOT,EmuxEvans/RIOT,abkam07/RIOT,josephnoir/RIOT,syin2/RIOT,kushalsingh007/RIOT,dhruvvyas90/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,lebrush/RIOT,watr-li/RIOT,kYc0o/RIOT,robixnai/RIOT,Osblouf/RIOT,spium/IoT-RIOT,RIOT-OS/RIOT,Josar/RIOT,rakendrathapa/RIOT,syin2/RIOT,kbumsik/RIOT,BytesGalore/PetersRIOT,EmuxEvans/RIOT,rfswarm/RIOT,biboc/RIOT,asanka-code/RIOT,avmelnikoff/RIOT,basilfx/RIOT,luciotorre/RIOT,stevenj/RIOT,Yonezawa-T2/RIOT,BytesGalore/PetersRIOT,binarylemon/RIOT,abkam07/RIOT,tdautc19841202/RIOT,hamilton-mote/RIOT-OS,thomaseichinger/RIOT,chris-wood/RIOT,herrfz/RIOT-old,DipSwitch/RIOT,BytesGalore/PetersRIOT,d00616/RIOT,benoit-canet/RIOT,tdautc19841202/RIOT,FrancescoErmini/RIOT,ant9000/RIOT,toonst/RIOT,rajma996/RIOT,A-Paul/RIOT,jbeyerstedt/RIOT-OTA-update,yogo1212/RIOT,stevenj/RIOT,kaspar030/RIOT,dkm/RIOT,benoit-canet/RIOT,bartfaizoltan/RIOT,daniel-k/RIOT,Josar/RIOT,luciotorre/RIOT,1blankz7/RIOT,RBartz/RIOT,sgso/RIOT,lebrush/RIOT,arvindpdmn/RIOT,ThanhVic/RIOT,jremmert-phytec-iot/RIOT,latsku/RIOT,thomaseichinger/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,watr-li/RIOT,nsol-nmsu/RIOT,mziegert/RIOT,sgso/RIOT,locicontrols/RIOT,tfar/RIOT,thiagohd/RIOT,jferreir/RIOT,jbeyerstedt/RIOT-OTA-update,sgso/RIOT,LudwigOrtmann/RIOT,lazytech-org/RIOT,patkan/RIOT,Darredevil/RIOT,changbiao/RIOT,watr-li/RIOT,authmillenon/RIOT,locicontrols/RIOT,brettswann/RIOT,aeneby/RIOT,A-Paul/RIOT,OlegHahm/RIOT,jferreir/RIOT,toonst/RIOT,shady33/RIOT,aeneby/RIOT,rajma996/RIOT,Lexandro92/RIOT-CoAP,Josar/RIOT,roberthartung/RIOT,josephnoir/RIOT,PSHIVANI/Riot-Code,MonsterCode8000/RIOT,FrancescoErmini/RIOT,mziegert/RIOT,ks156/RIOT,altairpearl/RIOT,PSHIVANI/Riot-Code,phiros/RIOT,RBartz/RIOT,JensErdmann/RIOT,cladmi/RIOT,miri64/RIOT,EmuxEvans/RIOT,gbarnett/RIOT,mziegert/RIOT,AnonMall/RIOT,nsol-nmsu/RIOT,altairpearl/RIOT,fnack/RIOT,RIOT-OS/RIOT,bartfaizoltan/RIOT,openkosmosorg/RIOT,alex1818/RIOT,miri64/RIOT,daniel-k/RIOT,benoit-canet/RIOT,l3nko/RIOT,rousselk/RIOT,Darredevil/RIOT,alex1818/RIOT,cladmi/RIOT,MohmadAyman/RIOT,automote/RIOT,biboc/RIOT,emmanuelsearch/RIOT,beurdouche/RIOT,MarkXYang/RIOT,stevenj/RIOT,brettswann/RIOT,TobiasFredersdorf/RIOT,ThanhVic/RIOT,backenklee/RIOT,toonst/RIOT,aeneby/RIOT,kb2ma/RIOT,Lexandro92/RIOT-CoAP,RubikonAlpha/RIOT,jasonatran/RIOT,x3ro/RIOT,dailab/RIOT,jfischer-phytec-iot/RIOT,arvindpdmn/RIOT,abp719/RIOT,sgso/RIOT,thiagohd/RIOT,marcosalm/RIOT,abkam07/RIOT,immesys/RiSyn,katezilla/RIOT,jfischer-phytec-iot/RIOT,Josar/RIOT,LudwigOrtmann/RIOT,mtausig/RIOT,l3nko/RIOT,bartfaizoltan/RIOT,roberthartung/RIOT,binarylemon/RIOT,attdona/RIOT,zhuoshuguo/RIOT,MohmadAyman/RIOT,RIOT-OS/RIOT,LudwigOrtmann/RIOT,msolters/RIOT,ros2/ros2_embedded_riot,backenklee/RIOT,smlng/RIOT,Osblouf/RIOT,wentaoshang/RIOT,abkam07/RIOT,dhruvvyas90/RIOT,adrianghc/RIOT,backenklee/RIOT,abp719/RIOT,gbarnett/RIOT,rfuentess/RIOT,OlegHahm/RIOT,basilfx/RIOT,luciotorre/RIOT,rfswarm/RIOT,herrfz/RIOT,attdona/RIOT,OlegHahm/RIOT,adrianghc/RIOT,immesys/RiSyn,Lotterleben/RIOT,wentaoshang/RIOT,ks156/RIOT,gebart/RIOT,kushalsingh007/RIOT,mziegert/RIOT,katezilla/RIOT,RBartz/RIOT,gebart/RIOT,FrancescoErmini/RIOT,MarkXYang/RIOT,centurysys/RIOT,asanka-code/RIOT,DipSwitch/RIOT,katezilla/RIOT,ros2/ros2_embedded_riot,koenning/RIOT,zhuoshuguo/RIOT,openkosmosorg/RIOT,ros2/ros2_embedded_riot,basilfx/RIOT,LudwigOrtmann/RIOT,1blankz7/RIOT,gebart/RIOT,TobiasFredersdorf/RIOT,robixnai/RIOT,neiljay/RIOT,MonsterCode8000/RIOT,immesys/RiSyn,l3nko/RIOT,Osblouf/RIOT,jasonatran/RIOT,gautric/RIOT,kerneltask/RIOT,chris-wood/RIOT,rousselk/RIOT,Lotterleben/RIOT,EmuxEvans/RIOT,automote/RIOT,kYc0o/RIOT,beurdouche/RIOT,asanka-code/RIOT,herrfz/RIOT,phiros/RIOT,marcosalm/RIOT,abkam07/RIOT,ximus/RIOT,kbumsik/RIOT,Yonezawa-T2/RIOT,PSHIVANI/Riot-Code,authmillenon/RIOT,mtausig/RIOT,1blankz7/RIOT,MohmadAyman/RIOT,backenklee/RIOT,neumodisch/RIOT,gbarnett/RIOT,tfar/RIOT,MonsterCode8000/RIOT,automote/RIOT,DipSwitch/RIOT,koenning/RIOT,luciotorre/RIOT,ks156/RIOT,smlng/RIOT,gautric/RIOT,rfswarm/RIOT,neiljay/RIOT,bartfaizoltan/RIOT,RBartz/RIOT,FrancescoErmini/RIOT,l3nko/RIOT,openkosmosorg/RIOT,EmuxEvans/RIOT,smlng/RIOT,rfswarm2/RIOT,RubikonAlpha/RIOT,MarkXYang/RIOT,hamilton-mote/RIOT-OS,lebrush/RIOT,rakendrathapa/RIOT,altairpearl/RIOT,smlng/RIOT,jremmert-phytec-iot/RIOT,daniel-k/RIOT,gbarnett/RIOT,abkam07/RIOT,mziegert/RIOT,jbeyerstedt/RIOT-OTA-update,chris-wood/RIOT,malosek/RIOT,tdautc19841202/RIOT,cladmi/RIOT,dailab/RIOT,ThanhVic/RIOT,A-Paul/RIOT,ntrtrung/RIOT,BytesGalore/PetersRIOT,rfuentess/RIOT,ThanhVic/RIOT,Lotterleben/RIOT,msolters/RIOT,syin2/RIOT,ThanhVic/RIOT,phiros/RIOT,AnonMall/RIOT,backenklee/RIOT,brettswann/RIOT,chris-wood/RIOT,haoyangyu/RIOT,jhollister/RIOT,sumanpanchal/RIOT,malosek/RIOT,toonst/RIOT,jhollister/RIOT,wentaoshang/RIOT,rfswarm/RIOT,haoyangyu/RIOT,altairpearl/RIOT,MonsterCode8000/RIOT,plushvoxel/RIOT,herrfz/RIOT-old,watr-li/RIOT,lazytech-org/RIOT,jasonatran/RIOT,OTAkeys/RIOT,centurysys/RIOT,khhhh/RIOT,LudwigKnuepfer/RIOT,plushvoxel/RIOT,khhhh/RIOT,thiagohd/RIOT,plushvoxel/RIOT,ant9000/RIOT,BytesGalore/RIOT,centurysys/RIOT,kYc0o/RIOT,herrfz/RIOT-old,AnonMall/RIOT,thiagohd/RIOT,ximus/RIOT,Yonezawa-T2/RIOT,rajma996/RIOT,jhollister/RIOT,arvindpdmn/RIOT,patkan/RIOT,neumodisch/RIOT,gbarnett/RIOT,binarylemon/RIOT,kb2ma/RIOT,koenning/RIOT,beurdouche/RIOT,kbumsik/RIOT,BytesGalore/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,rousselk/RIOT,jhollister/RIOT,neumodisch/RIOT,khhhh/RIOT,alignan/RIOT,shady33/RIOT,fnack/RIOT,robixnai/RIOT,neiljay/RIOT,1blankz7/RIOT,x3ro/RIOT,BytesGalore/RIOT,marcosalm/RIOT,rousselk/RIOT,LudwigOrtmann/RIOT,Hyungsin/RIOT-OS,tdautc19841202/RIOT,dailab/RIOT,emmanuelsearch/RIOT,herrfz/RIOT,Hyungsin/RIOT-OS,A-Paul/RIOT,centurysys/RIOT,locicontrols/RIOT,zhuoshuguo/RIOT,latsku/RIOT,kYc0o/RIOT,kaleb-himes/RIOT,tdautc19841202/RIOT,locicontrols/RIOT,fnack/RIOT,binarylemon/RIOT,kaleb-himes/RIOT