[Bug target/127137] mingw32crt: Remove outdated target

[dragon-archer at outlook dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127137

--- Comment #1 from Zhongteng Gui <dragon-archer at outlook dot com> ---
Created attachment 65452
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=65452&action=edit
Proposed patch