Remove unused include from metrics_log.cc.

BUG=371469

Review URL: https://codereview.chromium.org/280673002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@269949 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/metrics/metrics_log.cc

@@ -36,7 +36,6 @@
 #include "chrome/browser/plugins/plugin_prefs.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/common/chrome_version_info.h"
-#include "chrome/common/logging_chrome.h"
 #include "chrome/common/metrics/variations/variations_util.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/installer/util/google_update_settings.h"