Gtk: Remove unnecessary debug stack trace

R=thestig
BUG=None

Change-Id: I70ef781f1b4bb6b9f625338942af6c91ee098efe
Reviewed-on: https://chromium-review.googlesource.com/1067760Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Thomas Anderson <thomasanderson@chromium.org>
Cr-Commit-Position: refs/heads/master@{#560670}

chrome/browser/ui/libgtkui/settings_provider_gtk3.cc

@@ -8,8 +8,6 @@
 #include "chrome/browser/ui/libgtkui/gtk_ui.h"
 #include "chrome/browser/ui/libgtkui/gtk_util.h"
 
-#include "base/debug/stack_trace.h"
-
 namespace libgtkui {
 
 namespace {
@@ -77,7 +75,6 @@ SettingsProviderGtk3::FrameActionSettingWatcher::FrameActionSettingWatcher(
 }
 
 SettingsProviderGtk3::FrameActionSettingWatcher::~FrameActionSettingWatcher() {
-  base::debug::StackTrace().Print();
   if (signal_id_)
     g_signal_handler_disconnect(gtk_settings_get_default(), signal_id_);
 }