Revert r288966 as it is redundant and not right.

bsd.prog.mk and bsd.lib.mk already make OBJS depend on headers when there is
not .OBJDIR/.depend file, which is still true for the initial meta mode builds.
If there was something to benefit the meta mode build here then it should be
extended to the non-meta mode build as well.

Some of the problems here were just DPSRCS being hooked up wrongly, fixed in
r291330.

The logic itself is flawed as 'buildfiles' is in a different part of the
dependency tree than the objects and headers are, so the objects will still be
built independent from 'buildfiles'.  'buildfiles' is not ordered in the build
before objects.

Sponsored by:	EMC / Isilon Storage Division

share/mk/local.autodep.mk

@@ -14,12 +14,6 @@ LDFLAGS+= ${LDFLAGS_LAST}
 
 CLEANFILES+= .depend
 
-.for h in ${SRCS:M*.h}
-.if target($h)
-buildfiles: $h
-.endif
-.endfor
-
 # handy for debugging
 .SUFFIXES:  .S .c .cc .cpp .cpp-out