revert(3p/git): Revert merge of git upstream at v2.26.2

This causes cgit to serve error pages, which is undesirable.

This reverts commit 5229c9b232, reversing
changes made to f2b211131f.

third_party/git/range-diff.h

@@ -2,18 +2,16 @@
 #define RANGE_DIFF_H
 
 #include "diff.h"
-#include "argv-array.h"
 
 #define RANGE_DIFF_CREATION_FACTOR_DEFAULT 60
 
 /*
- * Compare series of commits in RANGE1 and RANGE2, and emit to the
+ * Compare series of commmits in RANGE1 and RANGE2, and emit to the
  * standard output.  NULL can be passed to DIFFOPT to use the built-in
  * default.
  */
 int show_range_diff(const char *range1, const char *range2,
 		    int creation_factor, int dual_color,
-		    const struct diff_options *diffopt,
-		    const struct argv_array *other_arg);
+		    struct diff_options *diffopt);
 
 #endif