boards/avsextrem: remove unused PWM defines
boards/avsextrem: remove unused PWM defines

x3ro/RIOT,adrianghc/RIOT,ant9000/RIOT,syin2/RIOT,authmillenon/RIOT,A-Paul/RIOT,LudwigKnuepfer/RIOT,TobiasFredersdorf/RIOT,jfischer-phytec-iot/RIOT,gautric/RIOT,adjih/RIOT,neiljay/RIOT,LudwigOrtmann/RIOT,jasonatran/RIOT,authmillenon/RIOT,plushvoxel/RIOT,kbumsik/RIOT,OlegHahm/RIOT,avmelnikoff/RIOT,adrianghc/RIOT,neumodisch/RIOT,backenklee/RIOT,jbeyerstedt/RIOT-OTA-update,authmillenon/RIOT,adjih/RIOT,biboc/RIOT,biboc/RIOT,smlng/RIOT,TobiasFredersdorf/RIOT,A-Paul/RIOT,Hyungsin/RIOT-OS,jbeyerstedt/RIOT-OTA-update,mfrey/RIOT,toonst/RIOT,TobiasFredersdorf/RIOT,Josar/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,miri64/RIOT,biboc/RIOT,x3ro/RIOT,josephnoir/RIOT,yogo1212/RIOT,kerneltask/RIOT,immesys/RiSyn,gautric/RIOT,plushvoxel/RIOT,kYc0o/RIOT,kerneltask/RIOT,lazytech-org/RIOT,RIOT-OS/RIOT,smlng/RIOT,kaleb-himes/RIOT,josephnoir/RIOT,immesys/RiSyn,x3ro/RIOT,ks156/RIOT,cladmi/RIOT,plushvoxel/RIOT,thomaseichinger/RIOT,Ell-i/RIOT,cladmi/RIOT,aeneby/RIOT,LudwigOrtmann/RIOT,yogo1212/RIOT,kbumsik/RIOT,hamilton-mote/RIOT-OS,authmillenon/RIOT,yogo1212/RIOT,OTAkeys/RIOT,kaleb-himes/RIOT,mtausig/RIOT,dkm/RIOT,biboc/RIOT,dkm/RIOT,katezilla/RIOT,lazytech-org/RIOT,backenklee/RIOT,avmelnikoff/RIOT,authmillenon/RIOT,yogo1212/RIOT,neiljay/RIOT,immesys/RiSyn,backenklee/RIOT,RIOT-OS/RIOT,yogo1212/RIOT,basilfx/RIOT,LudwigKnuepfer/RIOT,basilfx/RIOT,TobiasFredersdorf/RIOT,aeneby/RIOT,mtausig/RIOT,gautric/RIOT,kYc0o/RIOT,thomaseichinger/RIOT,jfischer-phytec-iot/RIOT,jasonatran/RIOT,neumodisch/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,OTAkeys/RIOT,kerneltask/RIOT,jasonatran/RIOT,BytesGalore/RIOT,authmillenon/RIOT,Josar/RIOT,Josar/RIOT,LudwigOrtmann/RIOT,toonst/RIOT,ant9000/RIOT,RIOT-OS/RIOT,LudwigOrtmann/RIOT,syin2/RIOT,ks156/RIOT,biboc/RIOT,mtausig/RIOT,dkm/RIOT,katezilla/RIOT,lazytech-org/RIOT,LudwigKnuepfer/RIOT,hamilton-mote/RIOT-OS,roberthartung/RIOT,Hyungsin/RIOT-OS,kaspar030/RIOT,hamilton-mote/RIOT-OS,x3ro/RIOT,kaleb-himes/RIOT,syin2/RIOT,adrianghc/RIOT,miri64/RIOT,gebart/RIOT,kaspar030/RIOT,roberthartung/RIOT,thomaseichinger/RIOT,x3ro/RIOT,josephnoir/RIOT,aeneby/RIOT,adjih/RIOT,thomaseichinger/RIOT,ant9000/RIOT,immesys/RiSyn,TobiasFredersdorf/RIOT,gautric/RIOT,rfuentess/RIOT,jfischer-phytec-iot/RIOT,roberthartung/RIOT,OTAkeys/RIOT,miri64/RIOT,adjih/RIOT,plushvoxel/RIOT,LudwigKnuepfer/RIOT,OlegHahm/RIOT,syin2/RIOT,LudwigKnuepfer/RIOT,dailab/RIOT,kYc0o/RIOT,toonst/RIOT,kaspar030/RIOT,neiljay/RIOT,kYc0o/RIOT,ant9000/RIOT,lazytech-org/RIOT,dailab/RIOT,A-Paul/RIOT,Josar/RIOT,OlegHahm/RIOT,ks156/RIOT,jfischer-phytec-iot/RIOT,Ell-i/RIOT,josephnoir/RIOT,kbumsik/RIOT,toonst/RIOT,kerneltask/RIOT,cladmi/RIOT,basilfx/RIOT,josephnoir/RIOT,BytesGalore/RIOT,Ell-i/RIOT,jasonatran/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,smlng/RIOT,jbeyerstedt/RIOT-OTA-update,smlng/RIOT,dailab/RIOT,smlng/RIOT,miri64/RIOT,katezilla/RIOT,BytesGalore/RIOT,aeneby/RIOT,OTAkeys/RIOT,neumodisch/RIOT,Josar/RIOT,backenklee/RIOT,immesys/RiSyn,neiljay/RIOT,gebart/RIOT,miri64/RIOT,rfuentess/RIOT,gebart/RIOT,OlegHahm/RIOT,katezilla/RIOT,avmelnikoff/RIOT,OTAkeys/RIOT,dkm/RIOT,gebart/RIOT,backenklee/RIOT,kaleb-himes/RIOT,basilfx/RIOT,BytesGalore/RIOT,mtausig/RIOT,cladmi/RIOT,plushvoxel/RIOT,jasonatran/RIOT,rfuentess/RIOT,avmelnikoff/RIOT,yogo1212/RIOT,katezilla/RIOT,rfuentess/RIOT,mfrey/RIOT,neumodisch/RIOT,A-Paul/RIOT,RIOT-OS/RIOT,lazytech-org/RIOT,mfrey/RIOT,toonst/RIOT,LudwigOrtmann/RIOT,neiljay/RIOT,LudwigOrtmann/RIOT,mfrey/RIOT,mfrey/RIOT,adrianghc/RIOT,kYc0o/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,dkm/RIOT,neumodisch/RIOT,Hyungsin/RIOT-OS,OlegHahm/RIOT,jbeyerstedt/RIOT-OTA-update,dailab/RIOT,dailab/RIOT,cladmi/RIOT,gautric/RIOT,basilfx/RIOT,Hyungsin/RIOT-OS,roberthartung/RIOT,RIOT-OS/RIOT,ks156/RIOT,Ell-i/RIOT,neumodisch/RIOT,jfischer-phytec-iot/RIOT,ant9000/RIOT,beurdouche/RIOT,beurdouche/RIOT,gebart/RIOT,syin2/RIOT,adjih/RIOT,beurdouche/RIOT,beurdouche/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,immesys/RiSyn,jbeyerstedt/RIOT-OTA-update,A-Paul/RIOT,rfuentess/RIOT,hamilton-mote/RIOT-OS,adrianghc/RIOT,hamilton-mote/RIOT-OS,kaspar030/RIOT,kaspar030/RIOT,thomaseichinger/RIOT,Ell-i/RIOT,kbumsik/RIOT,mtausig/RIOT,aeneby/RIOT,ks156/RIOT,beurdouche/RIOT,Hyungsin/RIOT-OS,avmelnikoff/RIOT,kerneltask/RIOT,kaleb-himes/RIOT,kbumsik/RIOT,BytesGalore/RIOT,roberthartung/RIOT