//local-remote-execution/generated/config:platform excludes darwin toolchains for non-remote execution builds

Description

//local-remote-execution/generated/config:platform seems to pollute or exclude building locally with bazel on MacOS. The defaults provide do not include darwin toolchains. This is problematic for building locally without using remote execution for builds.

bazel query //local-remote-execution/generated/config:platform --output build
# /Users/adam/workspace/native-link/local-remote-execution/generated/config/BUILD:35:9
platform(
  name = "platform",
  exec_properties = {"container-image": "docker://nativelink-toolchain:lslbs7cb2pdf0lgp14vz6kj9r2xbby55", "OSFamily": "Linux"},
  constraint_values = ["@platforms//os:linux", "@platforms//cpu:x86_64", "@bazel_tools//tools/cpp:clang"],
  parents = ["@local_config_platform//:host"],
)
# Rule platform instantiated at (most recent call last):
#   /Users/adam/workspace/native-link/local-remote-execution/generated/config/BUILD:35:9 in <toplevel>

Loading: 0 packages loaded

Reproduce

On MacOS run (https://gist.github.com/adam-singer/46277e3f61aeaf6a6326520f03dfeb5c#file-gistfile0-txt-L247
)

bazel test -s  //nativelink-store/...

cc: @aaronmondal