Remove references to DrMemory from chromium repo.

BUILD.gn

Index: BUILD.gn
diff --git a/BUILD.gn b/BUILD.gn
index 823e655cc5d1b40b00d24fea5269e3d8ce4411bf..c737daee79eef32e0fb07b96c52981b7cb5bb261 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -1082,75 +1082,3 @@ template("assert_valid_out_dir") {
 assert_valid_out_dir("_unused") {
   actual_sources = [ "$root_build_dir/foo" ]
 }
-
-if (is_win) {
-  group("chromium_builder_lkgr_drmemory_win") {
-    testonly = true
-
-    deps = [
-      "//content/shell:content_shell",
-      "//content/shell:content_shell_crash_service",
-    ]
-  }
-
-  group("chromium_builder_dbg_drmemory_win") {
-    testonly = true
-
-    deps = [
-      "//base:base_unittests",
-      "//cc:cc_unittests",
-      "//cc/blink:cc_blink_unittests",
-      "//chrome/installer/setup:setup_unittests",
-      "//chrome/installer/util:installer_util_unittests",
-      "//chrome/test:browser_tests",
-      "//chrome/test:chrome_app_unittests",
-      "//chrome/test:unit_tests",
-      "//chrome/test/chromedriver:chromedriver_unittests",
-      "//chrome_elf:chrome_elf_unittests",
-      "//components:components_unittests",
-      "//content/shell:content_shell_crash_service",
-      "//content/test:content_browsertests",
-      "//content/test:content_unittests",
-      "//courgette:courgette_unittests",
-      "//crypto:crypto_unittests",
-      "//device:device_unittests",
-      "//extensions:extensions_browsertests",
-      "//extensions:extensions_unittests",
-      "//gin:gin_shell",
-      "//gin:gin_unittests",
-      "//google_apis:google_apis_unittests",
-      "//google_apis/gcm:gcm_unit_tests",
-      "//gpu:gpu_unittests",
-      "//ipc:ipc_tests",
-      "//jingle:jingle_unittests",
-      "//media:media_unittests",
-      "//media/capture:capture_unittests",
-      "//media/cast:cast_unittests",
-      "//media/midi:midi_unittests",
-      "//mojo",
-      "//net:net_unittests",
-      "//printing:printing_unittests",
-      "//remoting:remoting_unittests",
-      "//skia:skia_unittests",
-      "//sql:sql_unittests",
-      "//storage//browser:storage_unittests",
-      "//third_party/WebKit/Source/platform:blink_platform_unittests",
-      "//third_party/WebKit/Source/platform/heap:blink_heap_unittests",
-      "//third_party/angle/src/tests:angle_unittests",
-      "//third_party/cacheinvalidation:cacheinvalidation_unittests",
-      "//third_party/leveldatabase:env_chromium_unittests",
-      "//third_party/libaddressinput:libaddressinput_unittests",
-      "//third_party/libphonenumber:libphonenumber_unittests",
-      "//ui/accessibility:accessibility_unittests",
-      "//ui/aura:aura_unittests",
-      "//ui/compositor:compositor_unittests",
-      "//ui/display:display_unittests",
-      "//ui/events:events_unittests",
-      "//ui/gfx:gfx_unittests",
-      "//ui/gl:gl_unittests",
-      "//ui/keyboard:keyboard_unittests",
-      "//ui/touch_selection:ui_touch_selection_unittests",
-      "//url:url_unittests",
-    ]
-  }
-}