Revert matching file modification status, test=document_fix (#29514)

tools/test_op_benchmark.sh

@@ -64,7 +64,8 @@ function load_CHANGE_OP_FILES_by_header_file {
 # Load op files that PR changes
 function load_CHANGE_OP_FILES {
   local sub_dir change_file
-  for change_file in $(git diff --name-status origin/develop | grep "^M" | awk '{print $2}')
+  # TODO(Avin0323): Need to filter the files added by the new OP.
+  for change_file in $(git diff --name-only origin/develop)
   do
     # match directory limit
     [[ "$change_file" =~ "paddle/fluid/operators/" ]] || continue