Bazel/Go: remove apple_support

This was actually unnecessary, and requried a full Xcode installation
that we'd rather avoid.

MODULE.bazel

@@ -13,7 +13,6 @@ local_path_override(
 
 # see https://registry.bazel.build/ for a list of available packages
 
-bazel_dep(name = "apple_support", version = "1.15.1-codeql.1")
 bazel_dep(name = "platforms", version = "0.0.9")
 bazel_dep(name = "rules_go", version = "0.47.0")
 bazel_dep(name = "rules_pkg", version = "0.10.1")
@@ -58,10 +57,6 @@ use_repo(node, "nodejs", "nodejs_toolchains")
 go_sdk = use_extension("@rules_go//go:extensions.bzl", "go_sdk")
 go_sdk.download(version = "1.22.2")  # default
 
-# following is needed for gazelle on macOS
-# see https://github.com/bazelbuild/bazel-gazelle/issues/1793
-go_sdk.download(version = "1.21.9")
-
 register_toolchains(
     "@nodejs_toolchains//:all",
 )