[tools] return early in fetch_deps.py.

TBR=machenbach@chromium.org

Bug: v8:6105
Change-Id: I15fe26c8546e024794c165affd17ce104ecae4a1
Reviewed-on: https://chromium-review.googlesource.com/867870Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#50616}

tools/node/fetch_deps.py

@@ -61,6 +61,12 @@ def EnsureGit(v8_path):
   return True
 
 def FetchDeps(v8_path):
+  # TODO(v8:6105):
+  # The return value gates whether Node's configure script actually
+  # uses GN. Change this to true once everything is ready so that
+  # the change to enable the GN build on the bots comes from V8.
+  return False;
+
   # Verify path.
   v8_path = os.path.abspath(v8_path)
   assert os.path.isdir(v8_path)
@@ -89,11 +95,6 @@ def FetchDeps(v8_path):
     if os.path.isfile(gclient_entries):
       os.remove(gclient_entries)
 
-  # TODO(v8:6105):
-  # The return value gates whether Node's configure script actually
-  # uses GN. Change this to true once everything is ready so that
-  # the change to enable the GN build on the bots comes from V8.
-  return False;
 
 if __name__ == "__main__":
   FetchDeps(sys.argv[1])