build: Revert grpc back to 1.76.2 and drop protobuf 4.33 Bazel migrations

Author: blakeli0

WORKSPACE

@@ -2,26 +2,6 @@ workspace(name = "gapic_generator_java")
 
 load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
 
-http_archive(
-    name = "rules_java",
-    sha256 = "47632cc506c858011853073449801d648e10483d4b50e080ec2549a4b2398960",
-    urls = [
-        "https://github.com/bazelbuild/rules_java/releases/download/8.15.2/rules_java-8.15.2.tar.gz",
-    ],
-)
-
-load("@rules_java//java:rules_java_deps.bzl", "rules_java_dependencies")
-rules_java_dependencies()
-
-http_archive(
-    name = "rules_python",
-    sha256 = "c68bdc4fbec25de5b5493b8819cfc877c4ea299c0dcb15c244c5a00208cde311",
-    strip_prefix = "rules_python-0.31.0",
-    url = "https://github.com/bazelbuild/rules_python/releases/download/0.31.0/rules_python-0.31.0.tar.gz",
-)
-
-load("@rules_python//python:repositories.bzl", "py_repositories")
-py_repositories()
 # gax-java and its transitive dependencies must be imported before
 # gapic-generator-java dependencies to match the order in googleapis repository,
 # which in its turn, prioritizes actual generated clients runtime dependencies

sdk-platform-java/gax-java/dependencies.properties

@@ -26,9 +26,9 @@ version.gax_httpjson=2.76.1-SNAPSHOT
 # The protobuf version is only used for generating gradle files for showcase module,
 # not for self-service clients (from googleapis project).
 
-version.com_google_protobuf=4.33.2
+version.com_google_protobuf=3.25.8
 version.google_java_format=1.15.0
-version.io_grpc=1.80.0
+version.io_grpc=1.76.2
 
 # Maven artifacts.
 # Note, the actual name of each property matters (bazel build scripts depend on it).
@@ -74,11 +74,11 @@ maven.com_google_api_grpc_grpc_google_iam_v1=com.google.api.grpc:grpc-google-iam
 maven.com_google_api_grpc_proto_google_iam_v1=com.google.api.grpc:proto-google-iam-v1:1.58.2
 maven.com_google_http_client_google_http_client=com.google.http-client:google-http-client:1.47.1
 maven.com_google_http_client_google_http_client_gson=com.google.http-client:google-http-client-gson:1.47.1
-maven.org_codehaus_mojo_animal_sniffer_annotations=org.codehaus.mojo:animal-sniffer-annotations:1.26
+maven.org_codehaus_mojo_animal_sniffer_annotations=org.codehaus.mojo:animal-sniffer-annotations:1.24
 maven.javax_annotation_javax_annotation_api=javax.annotation:javax.annotation-api:1.3.2
 maven.org_graalvm_sdk=org.graalvm.sdk:nativeimage:24.1.2
 maven.org_slf4j_slf4j_api=org.slf4j:slf4j-api:2.0.16
-maven.com_google_protobuf_protobuf_java_util=com.google.protobuf:protobuf-java-util:4.33.2
+maven.com_google_protobuf_protobuf_java_util=com.google.protobuf:protobuf-java-util:3.25.5
 
 # Testing maven artifacts
 maven.junit_junit=junit:junit:4.13.2

sdk-platform-java/gax-java/repositories.bzl

@@ -47,13 +47,12 @@ def com_google_api_gax_java_repositories():
     # properties file.
 
     _protobuf_version = PROPERTIES["version.com_google_protobuf"]
-    _protobuf_source_tag = _protobuf_version[2:] if _protobuf_version.startswith("4.") else _protobuf_version
-    _protobuf_version_in_link = "v%s" % _protobuf_source_tag
+    _protobuf_version_in_link = "v%s" % _protobuf_version
     _maybe(
         http_archive,
         name = "com_google_protobuf",
         urls = ["https://github.com/protocolbuffers/protobuf/archive/%s.zip" % _protobuf_version_in_link],
-        strip_prefix = "protobuf-%s" % _protobuf_source_tag,
+        strip_prefix = "protobuf-%s" % _protobuf_version,
     )
 
     _grpc_version = PROPERTIES["version.io_grpc"]