Rollup merge of rust-lang#99856 - csmoe:osx-no-dead-strip, r=bjorn3

fix: remove fake no_dead_strip for osx

Closes rust-lang#99788

Link arg `-no_dead_strip` doesn't exist on OSX at all.
The `no_gc_sections` function was never called before export-executable-symols implementation, and `export-executable-symbols` still works, so we just remove it.
r? `@bjorn3`

Author: Dylan-DPC

Diff for: compiler/rustc_codegen_ssa/src/back/linker.rs

@@ -566,9 +566,7 @@ impl<'a> Linker for GccLinker<'a> {
     }
 
     fn no_gc_sections(&mut self) {
-        if self.sess.target.is_like_osx {
-            self.linker_arg("-no_dead_strip");
-        } else if self.sess.target.linker_is_gnu || self.sess.target.is_like_wasm {
+        if self.sess.target.linker_is_gnu || self.sess.target.is_like_wasm {
             self.linker_arg("--no-gc-sections");
         }
     }