build: remove long-obsolete gyp workarounds
build: remove long-obsolete gyp workarounds

Drop obsolete workarounds from the `gyp_uv.py` wrapper script.
The bugs they work around were fixed about five years ago.

PR-URL: https://github.com/libuv/libuv/pull/1725
Reviewed-By: Colin Ihrig <838f779c91673db29b8572ea3f54d191d3878ae2@gmail.com>

unknownbrackets/maxcso,unknownbrackets/maxcso,unknownbrackets/maxcso,unknownbrackets/maxcso,unknownbrackets/maxcso,unknownbrackets/maxcso,unknownbrackets/maxcso