[Bug target/95259] Duplicated codes in libgcc, driver-i386.c and i386-builtins.c

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95259
Bug 95259 depends on bug 95258, which changed state.

Bug 95258 Summary: -march=native doesn't handle -mavx512vpopcntdq
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95258

           What    |Removed                     |Added
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             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |FIXED