Remove -Cunsafe-allow-abi-mismatch=sanitizer from TSAN tests.

The bug (rust-lang/rust#146465) was fixed in
rust-lang/rust#148068.

Author: gendx

.github/workflows/tsan.yml

@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     env:
       RUSTFLAGS: "-D warnings -C debug_assertions -Zsanitizer=thread"
-      RUSTDOCFLAGS: "-D warnings -C debug_assertions -Zsanitizer=thread -Cunsafe-allow-abi-mismatch=sanitizer"
+      RUSTDOCFLAGS: "-D warnings -C debug_assertions -Zsanitizer=thread"
     steps:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@nightly