bazel/tasks.ts cleanup should be done

bazel/tasks.ts has a cleanup note releated to microsoft/vscode#63951, that issue was fixed in Dec 2018, so the cleanup work should likely be done now.

Open bazel/tasks.ts and locate the cleanup note referencing microsoft/vscode#63951; read that context alongside the linked issue to confirm what is obsolete. Done means the outdated cleanup note and any directly related cleanup work are resolved, with the file left consistent.

Written by the indexing model from the issue text.