bun: clean up after x86_64-darwin drop

pkgs/by-name/bu/bun/package.nix

@@ -58,23 +58,12 @@ stdenvNoCC.mkDerivation (finalAttrs: {
         -change /usr/lib/libicucore.A.dylib '${lib.getLib darwin.ICU}/lib/libicucore.A.dylib'
       '${lib.getExe rcodesign}' sign --code-signature-flags linker-signed $out/bin/bun
     ''
-    # We currently cannot generate completions for x86_64-darwin because bun requires avx support to run, which is:
-    # 1. Not currently supported by the version of Rosetta on our aarch64 builders
-    # 2. Is not correctly detected even on macOS 15+, where it is available through Rosetta
-    #
-    # The baseline builds are no longer an option because they too now require avx support.
-    +
-      lib.optionalString
-        (
-          stdenvNoCC.buildPlatform.canExecute stdenvNoCC.hostPlatform
-          && !(stdenvNoCC.hostPlatform.isDarwin && stdenvNoCC.hostPlatform.isx86_64)
-        )
-        ''
-          installShellCompletion --cmd bun \
-            --bash <(SHELL="bash" $out/bin/bun completions) \
-            --zsh <(SHELL="zsh" $out/bin/bun completions) \
-            --fish <(SHELL="fish" $out/bin/bun completions)
-        '';
+    + lib.optionalString (stdenvNoCC.buildPlatform.canExecute stdenvNoCC.hostPlatform) ''
+      installShellCompletion --cmd bun \
+        --bash <(SHELL="bash" $out/bin/bun completions) \
+        --zsh <(SHELL="zsh" $out/bin/bun completions) \
+        --fish <(SHELL="fish" $out/bin/bun completions)
+    '';
 
   passthru = {
     sources = {
@@ -134,8 +123,5 @@ stdenvNoCC.mkDerivation (finalAttrs: {
     # Broken for Musl at 2024-01-13, tracking issue:
     # https://github.com/NixOS/nixpkgs/issues/280716
     broken = stdenvNoCC.hostPlatform.isMusl;
-
-    # Hangs when run via Rosetta 2 on Apple Silicon
-    hydraPlatforms = lib.lists.remove "x86_64-darwin" lib.platforms.all;
   };
 })