removing clutter: INIT_blob provision The lost init.c source was reconstructed from init.obj in 2017; prior to that reconstruction we were compiling main.lib from partial source: using the init module in blob form with various binary patches, but recompiling create_RVtasks.c from source so we could change RiViera SWE configuration. We've been using the fully reconstructed version of init.c since 2017, and now the old INIT_blob provision (which is not used by any config) is just extra noise in our targets/*.conf files. This commit removes all bits related to this provision, reducing clutter and making it easier to add new targets.

ram:	ramimage.srec

link_ram.cmd:	${RAM_LINK_SCRIPT_SRC} Makefile lcfgen
	perl ../scripts/ti/make_cmd.pl lcfgen $@ 0 ${RAM_LINK_SCRIPT_SRC} \
		${SPECIAL_LINK_LIBS}

ramimage.out:	${LIBS} build_date.obj str2ind.obj link_ram.cmd
	../toolwrap/vlnk470 -farcall -x -o $@ -m ramimage.map $^

ramimage.m0:	ramimage.out
	../toolwrap/hex470 -m -memwidth 16 -romwidth 16 $<

ramimage.srec:	ramimage.m0
	../helpers/srec4ram $< $@