tools/show_paths.bzl: check that provider_map isn't None

Otherwise it can fail:
$ bazel cquery pkg/p9/... --output=starlark --starlark:file=tools/show_paths.bzl
...
ERROR: Starlark evaluation error for //pkg/p9/p9test:mockgen:
Traceback (most recent call last):
	File "tools/show_paths.bzl", line 8, column 32, in format
Error: 'NoneType' value has no field or method 'get'
PiperOrigin-RevId: 396457764

2 files changed, 0 insertions, 65 deletions

diff --git a/test/util/BUILD b/test/util/BUILD
index 0c151c5a1..5b6bcb32c 100644
--- a/test/util/BUILD
+++ b/test/util/BUILD
@@ -352,7 +352,6 @@ cc_library(
 cc_library(
     name = "benchmark_main",
     testonly = 1,
-    srcs = ["benchmark_main.cc"],
     linkstatic = 1,
     deps = [
         ":test_util",
diff --git a/test/util/benchmark_main.cc b/test/util/benchmark_main.cc
deleted file mode 100644
index 2d4af6251..000000000
--- a/test/util/benchmark_main.cc
+++ /dev/null
@@ -1,64 +0,0 @@
-// Copyright 2018 The gVisor Authors.
-//
-// 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.
-
-#include "gtest/gtest.h"
-#include "absl/flags/flag.h"
-#include "third_party/benchmark/src/commandlineflags.h"
-#include "test/util/test_util.h"
-
-DECLARE_bool(benchmark_list_internal);
-DECLARE_string(benchmark_filter_internal);
-ABSL_FLAG(bool, benchmark_enable_random_interleaving_internal, false,
-          "forward");
-ABSL_FLAG(double, benchmark_min_time_internal, -1.0, "forward");
-ABSL_FLAG(int, benchmark_repetitions_internal, 1, "forward");
-
-// From //third_party/benchmark.
-//
-// These conflict with the internal definitions, but all the benchmark binaries
-// link against the external benchmark library for compatibility with the open
-// source build. We massage the internal-only flags into the external ones, and
-// call the function to actually run all registered external benchmarks.
-namespace benchmark {
-BM_DECLARE_bool(benchmark_list_tests);
-BM_DECLARE_string(benchmark_filter);
-BM_DECLARE_int32(benchmark_repetitions);
-BM_DECLARE_double(benchmark_min_time);
-BM_DECLARE_bool(benchmark_enable_random_interleaving);
-extern size_t RunSpecifiedBenchmarks();
-}  // namespace benchmark
-
-using benchmark::FLAGS_benchmark_enable_random_interleaving;
-using benchmark::FLAGS_benchmark_filter;
-using benchmark::FLAGS_benchmark_list_tests;
-using benchmark::FLAGS_benchmark_min_time;
-using benchmark::FLAGS_benchmark_repetitions;
-
-int main(int argc, char** argv) {
-  gvisor::testing::TestInit(&argc, &argv);
-  absl::SetFlag(&FLAGS_benchmark_list_tests,
-                absl::GetFlag(FLAGS_benchmark_list_internal));
-  absl::SetFlag(&FLAGS_benchmark_filter,
-                absl::GetFlag(FLAGS_benchmark_filter_internal));
-  absl::SetFlag(&FLAGS_benchmark_repetitions,
-                absl::GetFlag(FLAGS_benchmark_repetitions_internal));
-  absl::SetFlag(
-      &FLAGS_benchmark_enable_random_interleaving,
-      absl::GetFlag(FLAGS_benchmark_enable_random_interleaving_internal));
-  absl::SetFlag(&FLAGS_benchmark_min_time,
-                absl::GetFlag(FLAGS_benchmark_min_time_internal));
-
-  benchmark::RunSpecifiedBenchmarks();
-  return 0;
-}