Fix assert in make_qualified_names.py

Would assert a tuple not the actual expression. Remove parentheses.

Bug: 1056217, 1051750
Change-Id: Id21e440ea5f095b167bf3906b192021210d5cbff
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2075257Reviewed-by: Elly Fong-Jones <ellyjones@chromium.org>
Commit-Queue: Fredrik Söderquist <fs@opera.com>
Cr-Commit-Position: refs/heads/master@{#744733}

third_party/blink/renderer/build/scripts/make_qualified_names.py

@@ -60,9 +60,9 @@ class MakeQualifiedNamesWriter(json5_generator.Writer):
     def __init__(self, json5_file_paths, output_dir):
         super(MakeQualifiedNamesWriter, self).__init__(None, output_dir)
         self._input_files = copy.copy(json5_file_paths)
-        assert (len(json5_file_paths) <= 3, \
-            'MakeQualifiedNamesWriter requires at most 3 in files, got %d.' %
-            len(json5_file_paths))
+        assert len(json5_file_paths) <= 3, \
+            'MakeQualifiedNamesWriter requires at most 3 in files, got %d.' % \
+            len(json5_file_paths)
 
         # Input files are in a strict order with more optional files *first*:
         # 1) ARIA properties