chore: give up on bazel8 without bzlmod

Revert WORKSPACE-only changes

Author: alexeagle

.github/workflows/ci.yaml

@@ -25,4 +25,5 @@ jobs:
         [
           {"folder": ".", "bzlmodEnabled": false},
           {"folder": "examples", "bzlmodEnabled": false},
+          {"bazelversion": "8.0.0", "bzlmodEnabled": false},
         ]

e2e/smoke/WORKSPACE.bazel

@@ -22,10 +22,6 @@ load("@rules_proto//proto:repositories.bzl", "rules_proto_dependencies")
 
 rules_proto_dependencies()
 
-load("@rules_proto//proto:setup.bzl", "rules_proto_setup")
-
-rules_proto_setup()
-
 load("@bazel_features//:deps.bzl", "bazel_features_deps")
 
 bazel_features_deps()
@@ -36,22 +32,3 @@ protoc_toolchains(
     name = "protoc_toolchains",
     version = "v25.3",
 )
-
-# com_google_protobuf leaks a java dependency:
-# /home/runner/.bazel/external/com_google_protobuf/bazel/java_proto_library.bzl:9:6:
-# at /home/runner/.bazel/external/com_google_protobuf/bazel/private/bazel_java_proto_library_rule.bzl:9:6:
-# at /home/runner/.bazel/external/rules_java/java/common/java_info.bzl:16:6:
-# Unable to find package for @@compatibility_proxy//:proxy.bzl
-load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
-
-http_archive(
-    name = "rules_java",
-    sha256 = "5449ed36d61269579dd9f4b0e532cd131840f285b389b3795ae8b4d717387dd8",
-    urls = [
-        "https://github.com/bazelbuild/rules_java/releases/download/8.7.0/rules_java-8.7.0.tar.gz",
-    ],
-)
-
-load("@rules_java//java:rules_java_deps.bzl", "rules_java_dependencies")
-
-rules_java_dependencies()

protoc/repositories.bzl

@@ -21,23 +21,16 @@ def rules_protoc_dependencies():
     # The minimal version of bazel_skylib we require
     http_archive(
         name = "bazel_skylib",
-        sha256 = "bc283cdfcd526a52c3201279cda4bc298652efa898b10b4db0837dc51652756f",
+        sha256 = "cd55a062e763b9349921f0f5db8c3933288dc8ba4f76dd9416aac68acee3cb94",
         urls = [
-            "https://mirror.bazel.build/github.com/bazelbuild/bazel-skylib/releases/download/1.7.1/bazel-skylib-1.7.1.tar.gz",
-            "https://github.com/bazelbuild/bazel-skylib/releases/download/1.7.1/bazel-skylib-1.7.1.tar.gz",
+            "https://github.com/bazelbuild/bazel-skylib/releases/download/1.5.0/bazel-skylib-1.5.0.tar.gz",
+            "https://mirror.bazel.build/github.com/bazelbuild/bazel-skylib/releases/download/1.5.0/bazel-skylib-1.5.0.tar.gz",
         ],
     )
 
-    http_archive(
-        name = "bazel_features",
-        sha256 = "8b1c9b7558498000f5adebbc584b7bf15b6b2bf181448a66f6b2fc5b4c84231c",
-        strip_prefix = "bazel_features-1.23.0",
-        url = "https://github.com/bazel-contrib/bazel_features/releases/download/v1.23.0/bazel_features-v1.23.0.tar.gz",
-    )
-
     http_archive(
         name = "rules_proto",
-        sha256 = "14a225870ab4e91869652cfd69ef2028277fc1dc4910d65d353b62d6e0ae21f4",
-        strip_prefix = "rules_proto-7.1.0",
-        url = "https://github.com/bazelbuild/rules_proto/releases/download/7.1.0/rules_proto-7.1.0.tar.gz",
+        sha256 = "71fdbed00a0709521ad212058c60d13997b922a5d01dbfd997f0d57d689e7b67",
+        strip_prefix = "rules_proto-6.0.0-rc2",
+        url = "https://github.com/bazelbuild/rules_proto/releases/download/6.0.0-rc2/rules_proto-6.0.0-rc2.tar.gz",
     )