Fix compression fuzzers.
diff --git a/test/core/compression/message_compress_fuzzer.cc b/test/core/compression/message_compress_fuzzer.cc
index 1ea0853..aa844b7 100644
--- a/test/core/compression/message_compress_fuzzer.cc
+++ b/test/core/compression/message_compress_fuzzer.cc
@@ -39,7 +39,6 @@
 
   grpc_core::testing::LeakDetector leak_detector(true);
   grpc_init();
-  grpc_test_only_control_plane_credentials_force_init();
   grpc_slice_buffer input_buffer;
   grpc_slice_buffer_init(&input_buffer);
   grpc_slice_buffer_add(&input_buffer,
@@ -52,7 +51,6 @@
 
   grpc_slice_buffer_destroy(&input_buffer);
   grpc_slice_buffer_destroy(&output_buffer);
-  grpc_test_only_control_plane_credentials_destroy();
   grpc_shutdown_blocking();
   return 0;
 }
diff --git a/test/core/compression/message_decompress_fuzzer.cc b/test/core/compression/message_decompress_fuzzer.cc
index c600a74..3f31669 100644
--- a/test/core/compression/message_decompress_fuzzer.cc
+++ b/test/core/compression/message_decompress_fuzzer.cc
@@ -39,7 +39,6 @@
 
   grpc_core::testing::LeakDetector leak_detector(true);
   grpc_init();
-  grpc_test_only_control_plane_credentials_force_init();
   grpc_slice_buffer input_buffer;
   grpc_slice_buffer_init(&input_buffer);
   grpc_slice_buffer_add(&input_buffer,
@@ -52,7 +51,6 @@
 
   grpc_slice_buffer_destroy(&input_buffer);
   grpc_slice_buffer_destroy(&output_buffer);
-  grpc_test_only_control_plane_credentials_destroy();
   grpc_shutdown_blocking();
   return 0;
 }
diff --git a/test/core/compression/stream_compression_fuzzer.cc b/test/core/compression/stream_compression_fuzzer.cc
index c147aa5..c831608 100644
--- a/test/core/compression/stream_compression_fuzzer.cc
+++ b/test/core/compression/stream_compression_fuzzer.cc
@@ -31,7 +31,6 @@
 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
   grpc_core::testing::LeakDetector leak_detector(true);
   grpc_init();
-  grpc_test_only_control_plane_credentials_force_init();
   auto* context = grpc_stream_compression_context_create(
       GRPC_STREAM_COMPRESSION_GZIP_COMPRESS);
   grpc_slice_buffer input_buffer;
@@ -48,7 +47,6 @@
   grpc_stream_compression_context_destroy(context);
   grpc_slice_buffer_destroy(&input_buffer);
   grpc_slice_buffer_destroy(&output_buffer);
-  grpc_test_only_control_plane_credentials_destroy();
   grpc_shutdown_blocking();
   return 0;
 }
diff --git a/test/core/compression/stream_decompression_fuzzer.cc b/test/core/compression/stream_decompression_fuzzer.cc
index e460e6d..78c8efd 100644
--- a/test/core/compression/stream_decompression_fuzzer.cc
+++ b/test/core/compression/stream_decompression_fuzzer.cc
@@ -31,7 +31,6 @@
 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
   grpc_core::testing::LeakDetector leak_detector(true);
   grpc_init();
-  grpc_test_only_control_plane_credentials_force_init();
   auto* context = grpc_stream_compression_context_create(
       GRPC_STREAM_COMPRESSION_GZIP_DECOMPRESS);
   grpc_slice_buffer input_buffer;
@@ -49,7 +48,6 @@
   grpc_stream_compression_context_destroy(context);
   grpc_slice_buffer_destroy(&input_buffer);
   grpc_slice_buffer_destroy(&output_buffer);
-  grpc_test_only_control_plane_credentials_destroy();
   grpc_shutdown_blocking();
   return 0;
 }