* Update antlr4 to version 4.11.1 and use GitHub instead of website downloads
* Remove unused patch files
* Run x-add-version
* Remove single-use variable and enforce vcpkg version
* x-add-version
* Use VERSION variable which is generated by vcpkg from vcpkg.json
* Add quotes, remove variable-used-once.
* Minimize patch.
* Update version database.
Co-authored-by: Billy Robert O'Neal III <bion@microsoft.com>
