Removed compilation warning about unused variable in i2c test
Removed compilation warning about unused variable in i2c test

screamerbg/mbed,andreaslarssonublox/mbed,nRFMesh/mbed-os,jamesadevine/mbed,nabilbendafi/mbed,bentwire/mbed,K4zuki/mbed,kjbracey-arm/mbed,Marcomissyou/mbed,svogl/mbed-os,nvlsianpu/mbed,K4zuki/mbed,j-greffe/mbed-os,andcor02/mbed-os,netzimme/mbed-os,radhika-raghavendran/mbed-os5.1-onsemi,RonEld/mbed,jpbrucker/mbed,GustavWi/mbed,autopulated/mbed,Marcomissyou/mbed,bentwire/mbed,c1728p9/mbed-os,autopulated/mbed,jamesadevine/mbed,al177/mbed,jamesadevine/mbed,rosterloh/mbed,jferreir/mbed,screamerbg/mbed,rgrover/mbed,Shengliang/mbed,CalSol/mbed,arostm/mbed-os,larks/mbed,kl-cruz/mbed-os,betzw/mbed-os,bentwire/mbed,Marcomissyou/mbed,mikaleppanen/mbed-os,DanKupiniak/mbed,bentwire/mbed,catiedev/mbed-os,wodji/mbed,betzw/mbed-os,brstew/MBED-BUILD,Archcady/mbed-os,jpbrucker/mbed,mikaleppanen/mbed-os,struempelix/mbed,rosterloh/mbed,ryankurte/mbed-os,screamerbg/mbed,logost/mbed,geky/mbed,maximmbed/mbed,ban4jp/mbed,jeremybrodt/mbed,pi19404/mbed,K4zuki/mbed,bcostm/mbed-os,mazimkhan/mbed-os,kjbracey-arm/mbed,jferreir/mbed,getopenmono/mbed,theotherjimmy/mbed,getopenmono/mbed,netzimme/mbed-os,maximmbed/mbed,arostm/mbed-os,dbestm/mbed,Willem23/mbed,autopulated/mbed,NitinBhaskar/mbed,Sweet-Peas/mbed,mnlipp/mbed,sg-/mbed-drivers,devanlai/mbed,pradeep-gr/mbed-os5-onsemi,karsev/mbed-os,pi19404/mbed,svogl/mbed-os,fanghuaqi/mbed,rgrover/mbed,struempelix/mbed,jeremybrodt/mbed,HeadsUpDisplayInc/mbed,catiedev/mbed-os,masaohamanaka/mbed,tung7970/mbed-os-1,c1728p9/mbed-os,bcostm/mbed-os,ryankurte/mbed-os,CalSol/mbed,Tiryoh/mbed,tung7970/mbed-os-1,cvtsi2sd/mbed-os,Shengliang/mbed,0xc0170/mbed-drivers,screamerbg/mbed,sam-geek/mbed,cvtsi2sd/mbed-os,fahhem/mbed-os,NitinBhaskar/mbed,theotherjimmy/mbed,monkiineko/mbed-os,mnlipp/mbed,NXPmicro/mbed,svastm/mbed,K4zuki/mbed,Willem23/mbed,fvincenzo/mbed-os,Timmmm/mbed,mikaleppanen/mbed-os,hwfwgrp/mbed,devanlai/mbed,YarivCol/mbed-os,DanKupiniak/mbed,K4zuki/mbed,al177/mbed,andcor02/mbed-os,logost/mbed,nvlsianpu/mbed,pbrook/mbed,struempelix/mbed,ban4jp/mbed,fanghuaqi/mbed,RonEld/mbed,jeremybrodt/mbed,catiedev/mbed-os,Willem23/mbed,YarivCol/mbed-os,logost/mbed,iriark01/mbed-drivers,al177/mbed,rosterloh/mbed,devanlai/mbed,RonEld/mbed,theotherjimmy/mbed,kpurusho/mbed,jferreir/mbed,adamgreen/mbed,nvlsianpu/mbed,nRFMesh/mbed-os,fanghuaqi/mbed,mazimkhan/mbed-os,hwfwgrp/mbed,getopenmono/mbed,CalSol/mbed,brstew/MBED-BUILD,HeadsUpDisplayInc/mbed,fpiot/mbed-ats,mikaleppanen/mbed-os,ARM-software/mbed-beetle,jrjang/mbed,al177/mbed,pedromes/mbed,larks/mbed,YarivCol/mbed-os,alertby/mbed,jeremybrodt/mbed,mbedmicro/mbed,Timmmm/mbed,andreaslarssonublox/mbed,monkiineko/mbed-os,wodji/mbed,DanKupiniak/mbed,nRFMesh/mbed-os,NXPmicro/mbed,getopenmono/mbed,nvlsianpu/mbed,larks/mbed,dbestm/mbed,arostm/mbed-os,ban4jp/mbed,brstew/MBED-BUILD,devanlai/mbed,rgrover/mbed,hwfwgrp/mbed,rosterloh/mbed,cvtsi2sd/mbed-os,cvtsi2sd/mbed-os,naves-thiago/mbed-midi,Timmmm/mbed,mazimkhan/mbed-os,fvincenzo/mbed-os,bremoran/mbed-drivers,fvincenzo/mbed-os,bikeNomad/mbed,NXPmicro/mbed,arostm/mbed-os,nabilbendafi/mbed,ban4jp/mbed,alertby/mbed,Tiryoh/mbed,larks/mbed,nabilbendafi/mbed,RonEld/mbed,j-greffe/mbed-os,pi19404/mbed,ryankurte/mbed-os,dbestm/mbed,mnlipp/mbed,mmorenobarm/mbed-os,nvlsianpu/mbed,pedromes/mbed,autopulated/mbed,jpbrucker/mbed,sam-geek/mbed,nabilbendafi/mbed,netzimme/mbed-os,HeadsUpDisplayInc/mbed,Archcady/mbed-os,FranklyDev/mbed,adustm/mbed,karsev/mbed-os,tung7970/mbed-os,hwfwgrp/mbed,xcrespo/mbed,EmuxEvans/mbed,maximmbed/mbed,struempelix/mbed,arostm/mbed-os,fpiot/mbed-ats,netzimme/mbed-os,mbedmicro/mbed,pedromes/mbed,GustavWi/mbed,mmorenobarm/mbed-os,jamesadevine/mbed,mbedmicro/mbed,geky/mbed,jrjang/mbed,bcostm/mbed-os,brstew/MBED-BUILD,Shengliang/mbed,masaohamanaka/mbed,jrjang/mbed,alertby/mbed,karsev/mbed-os,RonEld/mbed,adustm/mbed,karsev/mbed-os,bikeNomad/mbed,bulislaw/mbed-os,pradeep-gr/mbed-os5-onsemi,betzw/mbed-os,theotherjimmy/mbed,masaohamanaka/mbed,monkiineko/mbed-os,fpiot/mbed-ats,jamesadevine/mbed,getopenmono/mbed,logost/mbed,sam-geek/mbed,nabilbendafi/mbed,svastm/mbed,logost/mbed,naves-thiago/mbed-midi,rgrover/mbed,EmuxEvans/mbed,radhika-raghavendran/mbed-os5.1-onsemi,sg-/mbed-drivers,rgrover/mbed,pi19404/mbed,nabilbendafi/mbed,andcor02/mbed-os,wodji/mbed,svogl/mbed-os,YarivCol/mbed-os,svastm/mbed,xcrespo/mbed,mmorenobarm/mbed-os,jferreir/mbed,JasonHow44/mbed,NXPmicro/mbed,adamgreen/mbed,Willem23/mbed,fahhem/mbed-os,arostm/mbed-os,xcrespo/mbed,dbestm/mbed,xcrespo/mbed,Timmmm/mbed,mbedmicro/mbed,bulislaw/mbed-os,sam-geek/mbed,fpiot/mbed-ats,naves-thiago/mbed-midi,jpbrucker/mbed,tung7970/mbed-os,netzimme/mbed-os,radhika-raghavendran/mbed-os5.1-onsemi,j-greffe/mbed-os,Archcady/mbed-os,Sweet-Peas/mbed,geky/mbed,betzw/mbed-os,jrjang/mbed,nRFMesh/mbed-os,NordicSemiconductor/mbed,JasonHow44/mbed,pbrook/mbed,wodji/mbed,rosterloh/mbed,HeadsUpDisplayInc/mbed,infinnovation/mbed-os,pedromes/mbed,nRFMesh/mbed-os,NitinBhaskar/mbed,Sweet-Peas/mbed,xcrespo/mbed,fvincenzo/mbed-os,mmorenobarm/mbed-os,0xc0170/mbed-drivers,Marcomissyou/mbed,masaohamanaka/mbed,struempelix/mbed,kjbracey-arm/mbed,hwfwgrp/mbed,fahhem/mbed-os,theotherjimmy/mbed,JasonHow44/mbed,mnlipp/mbed,adustm/mbed,devanlai/mbed,svogl/mbed-os,mnlipp/mbed,CalSol/mbed,pbrook/mbed,bikeNomad/mbed,HeadsUpDisplayInc/mbed,monkiineko/mbed-os,jpbrucker/mbed,tung7970/mbed-os-1,geky/mbed,betzw/mbed-os,pedromes/mbed,jpbrucker/mbed,karsev/mbed-os,al177/mbed,bentwire/mbed,Sweet-Peas/mbed,fanghuaqi/mbed,K4zuki/mbed,tung7970/mbed-os,Tiryoh/mbed,xcrespo/mbed,pbrook/mbed,RonEld/mbed,maximmbed/mbed,mmorenobarm/mbed-os,kl-cruz/mbed-os,c1728p9/mbed-os,radhika-raghavendran/mbed-os5.1-onsemi,NitinBhaskar/mbed,FranklyDev/mbed,bulislaw/mbed-os,tung7970/mbed-os-1,wodji/mbed,fahhem/mbed-os,dbestm/mbed,kl-cruz/mbed-os,autopulated/mbed,fvincenzo/mbed-os,svastm/mbed,bulislaw/mbed-os,Archcady/mbed-os,mikaleppanen/mbed-os,naves-thiago/mbed-midi,adustm/mbed,betzw/mbed-os,Tiryoh/mbed,EmuxEvans/mbed,andcor02/mbed-os,svogl/mbed-os,sam-geek/mbed,infinnovation/mbed-os,tung7970/mbed-os,bikeNomad/mbed,adamgreen/mbed,screamerbg/mbed,adamgreen/mbed,nvlsianpu/mbed,mmorenobarm/mbed-os,Sweet-Peas/mbed,fanghuaqi/mbed,ban4jp/mbed,svastm/mbed,pradeep-gr/mbed-os5-onsemi,FranklyDev/mbed,hwfwgrp/mbed,j-greffe/mbed-os,ARM-software/mbed-beetle,ryankurte/mbed-os,masaohamanaka/mbed,mazimkhan/mbed-os,naves-thiago/mbed-midi,infinnovation/mbed-os,kl-cruz/mbed-os,jferreir/mbed,DanKupiniak/mbed,pradeep-gr/mbed-os5-onsemi,infinnovation/mbed-os,mnlipp/mbed,mazimkhan/mbed-os,pradeep-gr/mbed-os5-onsemi,svogl/mbed-os,Marcomissyou/mbed,JasonHow44/mbed,NitinBhaskar/mbed,cvtsi2sd/mbed-os,rosterloh/mbed,monkiineko/mbed-os,geky/mbed,CalSol/mbed,bcostm/mbed-os,bulislaw/mbed-os,GustavWi/mbed,cvtsi2sd/mbed-os,alertby/mbed,pbrook/mbed,bremoran/mbed-drivers,nRFMesh/mbed-os,ARM-software/mbed-beetle,catiedev/mbed-os,struempelix/mbed,brstew/MBED-BUILD,NordicSemiconductor/mbed,mikaleppanen/mbed-os,brstew/MBED-BUILD,Shengliang/mbed,larks/mbed,Sweet-Peas/mbed,naves-thiago/mbed-midi,kpurusho/mbed,infinnovation/mbed-os,kl-cruz/mbed-os,HeadsUpDisplayInc/mbed,Timmmm/mbed,pbrook/mbed,Timmmm/mbed,ryankurte/mbed-os,autopulated/mbed,mbedmicro/mbed,jrjang/mbed,EmuxEvans/mbed,getopenmono/mbed,tung7970/mbed-os,NordicSemiconductor/mbed,CalSol/mbed,wodji/mbed,pradeep-gr/mbed-os5-onsemi,maximmbed/mbed,FranklyDev/mbed,jferreir/mbed,bulislaw/mbed-os,c1728p9/mbed-os,JasonHow44/mbed,Willem23/mbed,ban4jp/mbed,c1728p9/mbed-os,larks/mbed,FranklyDev/mbed,netzimme/mbed-os,YarivCol/mbed-os,iriark01/mbed-drivers,Tiryoh/mbed,logost/mbed,adustm/mbed,mazimkhan/mbed-os,jeremybrodt/mbed,bentwire/mbed,kpurusho/mbed,jrjang/mbed,GustavWi/mbed,fahhem/mbed-os,EmuxEvans/mbed,adamgreen/mbed,c1728p9/mbed-os,bcostm/mbed-os,Marcomissyou/mbed,andreaslarssonublox/mbed,jamesadevine/mbed,radhika-raghavendran/mbed-os5.1-onsemi,GustavWi/mbed,radhika-raghavendran/mbed-os5.1-onsemi,pedromes/mbed,maximmbed/mbed,alertby/mbed,pi19404/mbed,screamerbg/mbed,Shengliang/mbed,andcor02/mbed-os,kjbracey-arm/mbed,Tiryoh/mbed,NXPmicro/mbed,kl-cruz/mbed-os,karsev/mbed-os,theotherjimmy/mbed,catiedev/mbed-os,ARM-software/mbed-beetle,monkiineko/mbed-os,infinnovation/mbed-os,alertby/mbed,andreaslarssonublox/mbed,kpurusho/mbed,al177/mbed,JasonHow44/mbed,bikeNomad/mbed,fahhem/mbed-os,fpiot/mbed-ats,catiedev/mbed-os,adustm/mbed,NXPmicro/mbed,kpurusho/mbed,devanlai/mbed,Shengliang/mbed,Archcady/mbed-os,bcostm/mbed-os,kpurusho/mbed,masaohamanaka/mbed,j-greffe/mbed-os,fpiot/mbed-ats,andcor02/mbed-os,andreaslarssonublox/mbed,NordicSemiconductor/mbed,ryankurte/mbed-os,pi19404/mbed,EmuxEvans/mbed,tung7970/mbed-os-1,YarivCol/mbed-os,Archcady/mbed-os,dbestm/mbed,j-greffe/mbed-os,adamgreen/mbed