Revert of Reland Introduce mojo interface for collecting StackSamplingProfiler data

components/metrics/BUILD.gn

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 declare_args() {
   # Overrides os name in uma metrics log to "Blimp".
   metrics_use_blimp = false
 }
 
 # These are only used by the blimp team, which has entirely migrated to gn,
@@ skipping 222 matching lines @@
 
     public_deps = [
       ":profiler",
     ]
     deps = [
       "//base",
     ]
   }
 }
 
-static_library("call_stacks") {
-  deps = [
-    "//components/metrics/public/interfaces:call_stack_mojo_bindings",
-  ]
-}
-
 # GYP version: components/metrics.gypi:metrics_test_support
 static_library("test_support") {
   testonly = true
   sources = [
     "test_enabled_state_provider.cc",
     "test_enabled_state_provider.h",
     "test_metrics_provider.cc",
     "test_metrics_provider.h",
     "test_metrics_service_client.cc",
     "test_metrics_service_client.h",
@@ skipping 46 matching lines @@
     "ui/screen_info_metrics_provider_unittest.cc",
   ]
 
   deps = [
     ":metrics",
     ":net",
     ":profiler",
     ":test_support",
     ":ui",
     "//base/test:test_support",
-    "//components/metrics/public/cpp:call_stack_unit_tests",
     "//components/prefs:test_support",
     "//components/variations",
     "//net:test_support",
     "//testing/gtest",
     "//third_party/zlib:compression_utils",
     "//ui/gfx/geometry",
   ]
 
   if (is_linux) {
     sources += [ "serialization/serialization_utils_unittest.cc" ]
     deps += [ ":serialization" ]
   }
 
   if (is_chromeos) {
     deps += [ "leak_detector:unit_tests" ]
   }
-
-  # iOS is not supported by the profiler and the ios-simulator bot chokes on
-  # this test.
-  if (is_ios) {
-    deps -= [ "//components/metrics/public/cpp:call_stack_unit_tests" ]
-  }
 }