Revert of Always local fallback for message_names.cc

scripts/slave/compile.py

Index: scripts/slave/compile.py
diff --git a/scripts/slave/compile.py b/scripts/slave/compile.py
index 61eb08be8904d75fd55cac7705ddb9dee5dea13e..8ad7685dee42da8bb18ba6fb47fd14e0a8b3e678 100755
--- a/scripts/slave/compile.py
+++ b/scripts/slave/compile.py
@@ -109,13 +109,6 @@
   # The cache file is stored in the target output directory.
   env['GOMA_DEPS_CACHE_DIR'] = (
       options.goma_deps_cache_dir or options.target_output_dir)
-
-  # HACK(shinyak): Workaround for crbug.com/630502. Compiling
-  # tools/ipc_fuzzer/message_lib/message_names.cc is always slow on Mac.
-  # TODO(shinyak): Remove this when gn configuration is fixed.
-  if chromium_utils.IsMac():
-    env['GOMA_FALLBACK_INPUT_FILES'] = (
-        '../../tools/ipc_fuzzer/message_lib/message_names.cc')
 
   if options.goma_hermetic:
     env['GOMA_HERMETIC'] = options.goma_hermetic