Update RELEASES.md

Co-authored-by: Travis Cross <tc@traviscross.com>

Author: Mark-Simulacrum

RELEASES.md

@@ -26,7 +26,6 @@ Compiler
 --------
 - [Define `-C strip` to only affect binaries, not artifacts like `.pdb`.](https://github.com/rust-lang/rust/pull/115120/)
 - [Stabilize `-Crelro-level` for controlling runtime link hardening.](https://github.com/rust-lang/rust/pull/121694/)
-- [Stabilize importing `main` from other modules or crates.](https://github.com/rust-lang/rust/pull/122060/)
 - [Stabilize checking of `cfg` names and values at compile-time with `--check-cfg`.](https://github.com/rust-lang/rust/pull/123501/)
   *Note that this only stabilizes the compiler part, the Cargo part is still unstable in this release.*
 - [Add `aarch64-apple-visionos` and `aarch64-apple-visionos-sim` tier 3 targets.](https://github.com/rust-lang/rust/pull/121419/)