Removed some useless variable assignments

src/describe.c

@@ -571,8 +571,6 @@ static int describe(
 		}
 	}
 
-	best = (struct possible_tag *)git_vector_get(&all_matches, 0);
-
 	git_vector_sort(&all_matches);
 
 	best = (struct possible_tag *)git_vector_get(&all_matches, 0);

src/diff_tform.c

@@ -949,8 +949,6 @@ find_best_matches:
 	 * Rewrite the diffs with renames / copies
 	 */
 
-	tried_tgts = 0;
-
 	git_vector_foreach(&diff->deltas, t, tgt) {
 		/* skip things that are not rename targets */
 		if ((tgt->flags & GIT_DIFF_FLAG__IS_RENAME_TARGET) == 0)

src/oid.c

@@ -211,7 +211,7 @@ int git_oid_ncmp(const git_oid *oid_a, const git_oid *oid_b, size_t len)
 
 int git_oid_strcmp(const git_oid *oid_a, const char *str)
 {
-	const unsigned char *a = oid_a->id;
+	const unsigned char *a;
 	unsigned char strval;
 	int hexval;
 

src/pack.c

@@ -1105,7 +1105,6 @@ int git_packfile_alloc(struct git_pack_file **pack_out, const char *path)
 			p->pack_keep = 1;
 
 		memcpy(p->pack_name + root_len, ".pack", sizeof(".pack"));
-		path_len = path_len - strlen(".idx") + strlen(".pack");
 	}
 
 	if (p_stat(p->pack_name, &st) < 0 || !S_ISREG(st.st_mode)) {