Revert "[compiler-rt][fuzzer] SetThreadName build fix for Mingwin attempt (#106902)"

This reverts commit 7c4cffd9d8be424e9e9542be9aec3b5a6f69073e.

This commit broke compilation in environments that don't use
winpthreads.

GitOrigin-RevId: b32dc677325ccf992f7e957e15e97f41fdfa9c77
1 file changed