Remove redundant preprocessor flag from CFLAGS
Remove redundant preprocessor flag from CFLAGS

Already in AM_CPPFLAGS

OpenSC/OpenSC,dengert/OpenSC,philipWendland/OpenSC,mouse07410/OpenSC,dengert/OpenSC,metsma/OpenSC,mouse07410/OpenSC,philipWendland/OpenSC,OpenSC/OpenSC,OpenSC/OpenSC,LudovicRousseau/OpenSC,LudovicRousseau/OpenSC,mouse07410/OpenSC,metsma/OpenSC,dengert/OpenSC,metsma/OpenSC,LudovicRousseau/OpenSC,philipWendland/OpenSC