Remove combine-diff.c::uninteresting()
Remove combine-diff.c::uninteresting()

A patch from David Rientjes made me realize we do not have to have
this function -- just call diff_unmodified_pair() directly.

Signed-off-by: Junio C Hamano <dc50d1021234060e53ec42a77d526afa2fe07479@cox.net>

destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git