Removed this code because it was causing issues within the code itself.
Revert "Fixed a bug in SP where moving along walls at certain angles allowed for players to accelerate beyond control. Thanks to @Agustinlv for this fix."

This reverts commit 73e6c9177be9e62ab18fe8c005dc8d3a7e9acc1e.
Update mingw readme
Merge https://github.com/Razish/OpenJK