Revert "Bazel rules for Python grpcio_reflection"

This reverts commit 2e78e516ad.

src/proto/grpc/reflection/v1alpha/BUILD

@@ -22,11 +22,3 @@ grpc_proto_library(
     name = "reflection_proto",
     srcs = ["reflection.proto"],
 )
-
-filegroup(
-    name = "reflection_proto_file",
-    srcs = [
-        "reflection.proto",
-    ],
-)
-

src/proto/grpc/testing/BUILD

@@ -15,8 +15,6 @@
 licenses(["notice"])  # Apache v2
 
 load("//bazel:grpc_build_system.bzl", "grpc_proto_library", "grpc_package")
-load("@grpc_python_dependencies//:requirements.bzl", "requirement")
-load("@org_pubref_rules_protobuf//python:rules.bzl", "py_proto_library")
 
 grpc_package(name = "testing", visibility = "public")
 
@@ -60,15 +58,6 @@ grpc_proto_library(
     has_services = False,
 )
 
-py_proto_library(
-    name = "py_empty_proto",
-    protos = ["empty.proto",],
-    with_grpc = True,
-    deps = [
-        requirement('protobuf'),
-    ],
-)
-
 grpc_proto_library(
     name = "messages_proto",
     srcs = ["messages.proto"],

src/proto/grpc/testing/proto2/BUILD.bazel

@@ -1,30 +0,0 @@
-load("@grpc_python_dependencies//:requirements.bzl", "requirement")
-load("@org_pubref_rules_protobuf//python:rules.bzl", "py_proto_library")
-
-package(default_visibility = ["//visibility:public"])
-
-py_proto_library(
-    name = "empty2_proto",
-    protos = [
-        "empty2.proto",
-    ],
-    with_grpc = True,
-    deps = [
-        requirement('protobuf'),
-    ],
-)
-
-py_proto_library(
-    name = "empty2_extensions_proto",
-    protos = [
-        "empty2_extensions.proto",
-    ],
-    proto_deps = [
-        ":empty2_proto",
-    ],
-    with_grpc = True,
-    deps = [
-        requirement('protobuf'),
-    ],
-)
-

src/python/grpcio_reflection/grpc_reflection/v1alpha/BUILD.bazel

@@ -1,34 +0,0 @@
-load("@grpc_python_dependencies//:requirements.bzl", "requirement")
-load("@org_pubref_rules_protobuf//python:rules.bzl", "py_proto_library")
-
-package(default_visibility = ["//visibility:public"])
-
-genrule(
-    name = "mv_reflection_proto",
-    srcs = [
-        "//src/proto/grpc/reflection/v1alpha:reflection_proto_file",
-    ],
-    outs = ["reflection.proto",],
-    cmd = "cp $< $@",
-)
-
-py_proto_library(
-    name = "py_reflection_proto",
-    protos = [":mv_reflection_proto",],
-    with_grpc = True,
-    deps = [
-        requirement('protobuf'),
-    ],
-)
-
-py_library(
-    name = "grpc_reflection",
-    srcs = ["reflection.py",],
-    deps = [
-        ":py_reflection_proto",
-        "//src/python/grpcio/grpc:grpcio",
-        requirement('protobuf'),
-    ],
-    imports=["../../",],
-)
-

src/python/grpcio_tests/tests/reflection/BUILD.bazel

@@ -1,21 +0,0 @@
-load("@grpc_python_dependencies//:requirements.bzl", "requirement")
-
-package(default_visibility = ["//visibility:public"])
-
-py_test(
-    name="_reflection_servicer_test",
-    size="small",
-    timeout="moderate",
-    srcs=["_reflection_servicer_test.py",],
-    main="_reflection_servicer_test.py",
-    deps=[
-        "//src/python/grpcio/grpc:grpcio",
-        "//src/python/grpcio_reflection/grpc_reflection/v1alpha:grpc_reflection",
-        "//src/python/grpcio_tests/tests/unit:test_common",
-        "//src/proto/grpc/testing:py_empty_proto",
-        "//src/proto/grpc/testing/proto2:empty2_extensions_proto",
-        requirement('protobuf'),
-    ],
-    imports=["../../",],
-)
-