chore: clean up Node.js TOC for cloud-rad (#456)

* chore: clean up Node.js TOC for cloud-rad

Source-Author: F. Hinkelmann <franziska.hinkelmann@gmail.com>
Source-Date: Wed Oct 21 09:26:04 2020 -0400
Source-Repo: googleapis/synthtool
Source-Sha: f96d3b455fe27c3dc7bc37c3c9cd27b1c6d269c8
Source-Link: googleapis/synthtool@f96d3b4

* chore: fix Node.js TOC for cloud-rad

Source-Author: F. Hinkelmann <franziska.hinkelmann@gmail.com>
Source-Date: Wed Oct 21 12:01:24 2020 -0400
Source-Repo: googleapis/synthtool
Source-Sha: 901ddd44e9ef7887ee681b9183bbdea99437fdcc
Source-Link: googleapis/synthtool@901ddd4

packages/google-cloud-texttospeech/synth.metadata

@@ -4,7 +4,7 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/nodejs-text-to-speech.git",
-        "sha": "ccbf8e8712aaed6b2fac2644c3b35a5b62da7f32"
+        "sha": "39a79ff4302e1a6de3cb5b8949974832cd65723b"
       }
     },
     {
@@ -19,7 +19,7 @@
       "git": {
         "name": "synthtool",
         "remote": "https://github.com/googleapis/synthtool.git",
-        "sha": "5451633881133e5573cc271a18e73b18caca8b1b"
+        "sha": "901ddd44e9ef7887ee681b9183bbdea99437fdcc"
       }
     }
   ],