Revert of GN build rules for four audio processing test executables

webrtc/modules/audio_processing/BUILD.gn

Index: webrtc/modules/audio_processing/BUILD.gn
diff --git a/webrtc/modules/audio_processing/BUILD.gn b/webrtc/modules/audio_processing/BUILD.gn
index 84ff8a087706aff39af7feccde9eb3f3c7fadfca..dca33885ffd8da0df0b18de570fada9ca64446a8 100644
--- a/webrtc/modules/audio_processing/BUILD.gn
+++ b/webrtc/modules/audio_processing/BUILD.gn
@@ -163,7 +163,6 @@
   defines = []
   deps = [
     "../..:webrtc_common",
-    "../../system_wrappers:metrics_default",
     "../audio_coding:isac",
   ]
 
@@ -431,71 +430,6 @@
     ]
   }
 
-  executable("transient_suppression_test") {
-    testonly = true
-    sources = [
-      "transient/file_utils.cc",
-      "transient/file_utils.h",
-      "transient/transient_suppression_test.cc",
-    ]
-    deps = [
-      ":audio_processing",
-      "../../test:test_support",
-      "//testing/gtest",
-      "//third_party/gflags",
-    ]
-    if (is_clang) {
-      # Suppress warnings from the Chromium Clang plugins (bugs.webrtc.org/163).
-      configs -= [ "//build/config/clang:find_bad_constructs" ]
-    }
-  }
-
-  executable("click_annotate") {
-    testonly = true
-    sources = [
-      "transient/click_annotate.cc",
-      "transient/file_utils.cc",
-      "transient/file_utils.h",
-    ]
-    deps = [
-      ":audio_processing",
-    ]
-  }
-
-  executable("nonlinear_beamformer_test") {
-    testonly = true
-    sources = [
-      "beamformer/nonlinear_beamformer_test.cc",
-    ]
-    deps = [
-      ":audio_processing",
-      ":audioproc_test_utils",
-      "//third_party/gflags",
-    ]
-    if (is_clang) {
-      # Suppress warnings from the Chromium Clang plugins (bugs.webrtc.org/163).
-      configs -= [ "//build/config/clang:find_bad_constructs" ]
-    }
-  }
-
-  executable("intelligibility_proc") {
-    testonly = true
-    sources = [
-      "intelligibility/test/intelligibility_proc.cc",
-    ]
-    deps = [
-      ":audio_processing",
-      ":audioproc_test_utils",
-      "../../test:test_support",
-      "//testing/gtest",
-      "//third_party/gflags",
-    ]
-    if (is_clang) {
-      # Suppress warnings from the Chromium Clang plugins (bugs.webrtc.org/163).
-      configs -= [ "//build/config/clang:find_bad_constructs" ]
-    }
-  }
-
   if (rtc_enable_protobuf) {
     proto_library("audioproc_unittest_proto") {
       sources = [