Back out "[antlir2][buck] strip platform config from rpm snapshot rules"

Summary:
Original commit changeset: 5ecd0a25d784

Original Phabricator Diff: D68562713

Breaking `fast-snapshot` and I don't really know why

Test Plan:
testhard
```
[vmagro@92357.od /data/sandcastle/boxes/fbsource (d825ae2b7)]$ buck bxl fbcode//mode/opt fbcode//antlir/antlir2/package_managers/dnf/snapshot/facebook/fast_snapshot/fast_snapshot.bxl:universe_to_json
buck-out/v2/gen-bxl/fbcode/b50fd50c6a3e2a68/antlir/antlir2/package_managers/dnf/snapshot/facebook/fast_snapshot/fast_snapshot.bxl/__universe_to_json__fc092b66ef0e1e93__/universe.json
BXL SUCCEEDED

[vmagro@92357.od /data/sandcastle/boxes/fbsource (d825ae2b7)]$ jq < buck-out/v2/gen-bxl/fbcode/b50fd50c6a3e2a68/antlir/antlir2/package_managers/dnf/snapshot/facebook/fast_snapshot/fast_snapshot.bxl/__universe_to_json__fc092b66ef0e1e93__/universe.json '.rpms | length'
376078
```

Reviewed By: naveedgol

Differential Revision: D68604934

fbshipit-source-id: fbac1c97eb296139f4965968eacd79bf2a9e8700

antlir/antlir2/cfg/strip_configuration/strip_configuration.bzl

@@ -27,7 +27,7 @@ def _strip_configuration_transition_impl(
         configuration = ConfigurationInfo(constraints = {}, values = {}),
     )
 
-strip_configuration_transition = transition(
+_strip_configuration_transition = transition(
     impl = _strip_configuration_transition_impl,
     refs = {},
 )
@@ -46,7 +46,7 @@ def _strip_configuration_impl(ctx: AnalysisContext) -> list[Provider]:
 strip_configuration_alias = rule(
     impl = _strip_configuration_impl,
     attrs = {
-        "actual": attrs.transition_dep(cfg = strip_configuration_transition),
+        "actual": attrs.transition_dep(cfg = _strip_configuration_transition),
         "labels": attrs.list(attrs.string(), default = []),
     },
 )