yarn publish is broken (#3137)

tools/publish-to-npm.py

@@ -40,9 +40,7 @@ def npm_publish():
     if new_version > deployed_version:
         subprocess.check_call(['npm', 'whoami'])
         subprocess.check_call(['yarn'])
-        subprocess.check_call([
-            'yarn', 'publish', '--no-git-tag-version', '--new-version', str(new_version)
-        ])
+        subprocess.check_call(['npm', 'publish'])
 
 if __name__ == '__main__':
     main()