Remove the accelerated/buildstep support from the Makefile, since the non-accelerated version now allows caching.
Remove the accelerated/buildstep support from the Makefile, since the non-accelerated version now allows caching.

deviceMP/resin-supervisor,nghiant2710/resin-supervisor,nghiant2710/resin-supervisor,resin-io/resin-multivisor,deviceMP/resin-supervisor