[arch][arm] remove dcc.S from the build
[arch][arm] remove dcc.S from the build

Was accidentally deleted in previous change, but was unused anyway,
srodrig1/lk,travisg/lk,travisg/lk,hollanderic/lkstuff,srodrig1/lk,littlekernel/lk,GCrean/lk,srodrig1/lk,sndnvaps/lk,nvll/lk,skabet/lk,nvll/lk,littlekernel/lk,sndnvaps/lk,littlekernel/lk,srodrig1/lk,skabet/lk,skabet/lk,skabet/lk,nvll/lk,minglun-tsai/lk,travisg/lk,minglun-tsai/lk,skabet/lk,srodrig1/lk,minglun-tsai/lk,sndnvaps/lk,nvll/lk,hollanderic/lkstuff,GCrean/lk,GCrean/lk,hollanderic/lkstuff,travisg/lk,sndnvaps/lk,nvll/lk,littlekernel/lk,ErikCorryGoogle/lk,hollanderic/lkstuff,sndnvaps/lk,GCrean/lk,ErikCorryGoogle/lk,ErikCorryGoogle/lk,GCrean/lk,minglun-tsai/lk,ErikCorryGoogle/lk