diff-merges: get rid of now empty diff_merges_init_revs()

After getting rid of 'ignore_merges' field, the diff_merges_init_revs()
function became empty. Get rid of it.

Signed-off-by: Sergey Organov <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: sorganov

diff-merges.c

@@ -21,10 +21,6 @@ static void set_dense_combined(struct rev_info *revs)
  * Public functions. They are in the order they are called.
  */
 
-void diff_merges_init_revs(struct rev_info *revs)
-{
-}
-
 int diff_merges_parse_opts(struct rev_info *revs, const char **argv)
 {
 	int argcount = 1;

diff-merges.h

@@ -9,8 +9,6 @@
 
 struct rev_info;
 
-void diff_merges_init_revs(struct rev_info *revs);
-
 int diff_merges_parse_opts(struct rev_info *revs, const char **argv);
 
 void diff_merges_suppress(struct rev_info *revs);

revision.c

@@ -1814,7 +1814,6 @@ void repo_init_revisions(struct repository *r,
 
 	revs->repo = r;
 	revs->abbrev = DEFAULT_ABBREV;
-	diff_merges_init_revs(revs);
 	revs->simplify_history = 1;
 	revs->pruning.repo = r;
 	revs->pruning.flags.recursive = 1;