requirements: Remove core.txt, since it duplicates setup.py
requirements: Remove core.txt, since it duplicates setup.py

jmarsik/mopidy,dbrgn/mopidy,tkem/mopidy,tkem/mopidy,jcass77/mopidy,bencevans/mopidy,jmarsik/mopidy,vrs01/mopidy,woutervanwijk/mopidy,tkem/mopidy,kingosticks/mopidy,ZenithDK/mopidy,pacificIT/mopidy,priestd09/mopidy,abarisain/mopidy,pacificIT/mopidy,jmarsik/mopidy,diandiankan/mopidy,mopidy/mopidy,bencevans/mopidy,ZenithDK/mopidy,adamcik/mopidy,mokieyue/mopidy,quartz55/mopidy,liamw9534/mopidy,dbrgn/mopidy,mopidy/mopidy,rawdlite/mopidy,swak/mopidy,dbrgn/mopidy,mokieyue/mopidy,jodal/mopidy,diandiankan/mopidy,priestd09/mopidy,glogiotatidis/mopidy,kingosticks/mopidy,adamcik/mopidy,jcass77/mopidy,quartz55/mopidy,swak/mopidy,diandiankan/mopidy,pacificIT/mopidy,ali/mopidy,woutervanwijk/mopidy,bacontext/mopidy,SuperStarPL/mopidy,quartz55/mopidy,hkariti/mopidy,hkariti/mopidy,glogiotatidis/mopidy,tkem/mopidy,jcass77/mopidy,swak/mopidy,SuperStarPL/mopidy,priestd09/mopidy,mokieyue/mopidy,vrs01/mopidy,bacontext/mopidy,ali/mopidy,hkariti/mopidy,rawdlite/mopidy,diandiankan/mopidy,bacontext/mopidy,dbrgn/mopidy,adamcik/mopidy,ali/mopidy,ali/mopidy,vrs01/mopidy,rawdlite/mopidy,hkariti/mopidy,abarisain/mopidy,SuperStarPL/mopidy,pacificIT/mopidy,bencevans/mopidy,ZenithDK/mopidy,swak/mopidy,vrs01/mopidy,jmarsik/mopidy,bencevans/mopidy,quartz55/mopidy,jodal/mopidy,ZenithDK/mopidy,mokieyue/mopidy,kingosticks/mopidy,glogiotatidis/mopidy,liamw9534/mopidy,SuperStarPL/mopidy,glogiotatidis/mopidy,rawdlite/mopidy,bacontext/mopidy,jodal/mopidy,mopidy/mopidy