remove unused mrb_rescue()

src/etc.c

@@ -70,21 +70,6 @@ mrb_lastline_get(mrb_state *mrb)
   }
 }
 
-mrb_value
-mrb_rescue2(mrb_state *mrb, mrb_value (* b_proc) (ANYARGS), mrb_value *data1,
-                           mrb_value (* r_proc) (ANYARGS), mrb_value *data2, ...)
-{
-    mrb_value result = (*b_proc) (mrb, data1);
-    return result;
-}
-
-mrb_value
-mrb_rescue(mrb_state *mrb, mrb_value (* b_proc)(ANYARGS), mrb_value *data1,
-                          mrb_value (* r_proc)(ANYARGS), mrb_value *data2)
-{
-  return mrb_rescue2(mrb, b_proc, data1, r_proc, data2, mrb->eStandardError_class,
-                         mrb_fixnum_value(0));
-}
 /* ------------------------------------------------ */
 /*
  * Calls func(obj, arg, recursive), where recursive is non-zero if the

src/range.c

@@ -111,7 +111,6 @@ range_init(mrb_state *mrb, mrb_value range, mrb_value beg, mrb_value end, mrb_in
   if ((mrb_type(beg) != MRB_TT_FIXNUM) || (mrb_type(end) != MRB_TT_FIXNUM)) {
     args[0] = beg;
     args[1] = end;
-    /* eroor.c v = mrb_rescue(range_check, (mrb_value)args, range_failed, 0);
     if (mrb_nil_p(v)) range_failed(); */
     if (!range_check(mrb, args)) {
       printf("range_failed()\n");