Merge ref '425a9c0a0e36' from rust-lang/rust

Pull recent changes from https://github.com/rust-lang/rust via Josh.

Upstream ref: 425a9c0a0e365c0b8c6cfd00c2ded83a73bed9a0
Filtered ref: 4f47825

This merge was created using https://github.com/rust-lang/josh-sync.

Author: The rustc-josh-sync Cronjob Bot

crates/core_arch/src/lib.rs

@@ -18,8 +18,6 @@
     rustc_attrs,
     staged_api,
     doc_cfg,
-    tbm_target_feature,
-    sse4a_target_feature,
     riscv_target_feature,
     arm_target_feature,
     mips_target_feature,