tools: remove unused global types from type-parser

`tools/doc/type-parser.js` has several global types that are not
used. Remove the unused global types.

PR-URL: https://github.com/nodejs/node/pull/21135


Reviewed-By: Vse Mozhet Byt <vsemozhetbyt@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>