Fix cc_toolchain_alias redirect

PiperOrigin-RevId: 806193547
Change-Id: I43b28c8e4bfadbaeb489fdc0a8a9c1d47045ae44
diff --git a/cc/toolchains/cc_toolchain_alias.bzl b/cc/toolchains/cc_toolchain_alias.bzl
index b0aa1b1..2728213 100644
--- a/cc/toolchains/cc_toolchain_alias.bzl
+++ b/cc/toolchains/cc_toolchain_alias.bzl
@@ -11,6 +11,8 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-"""cc_toolchain_alias rule"""
+"""cc_toolchain rule"""
 
-cc_toolchain_alias = native.cc_toolchain_alias
+load("@cc_compatibility_proxy//:proxy.bzl", _cc_toolchain_alias = "cc_toolchain_alias")
+
+cc_toolchain_alias = _cc_toolchain_alias
diff --git a/cc/toolchains/cc_toolchain_alias.bzl.oss b/cc/toolchains/cc_toolchain_alias.bzl.oss
deleted file mode 100644
index 2728213..0000000
--- a/cc/toolchains/cc_toolchain_alias.bzl.oss
+++ /dev/null
@@ -1,18 +0,0 @@
-# Copyright 2024 The Bazel Authors. All rights reserved.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#    http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-"""cc_toolchain rule"""
-
-load("@cc_compatibility_proxy//:proxy.bzl", _cc_toolchain_alias = "cc_toolchain_alias")
-
-cc_toolchain_alias = _cc_toolchain_alias