cpu/stm32f1: remove unused cpu_clock_scale
cpu/stm32f1: remove unused cpu_clock_scale

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