Remove the BackspaceGoesBack flag.

chrome/browser/ui/browser_command_controller.cc

Index: chrome/browser/ui/browser_command_controller.cc
diff --git a/chrome/browser/ui/browser_command_controller.cc b/chrome/browser/ui/browser_command_controller.cc
index e917e1714c823428dc008522b8c9da25e9a191f0..e04397cb4bc6bc9b22c13b17ecc4b1c1ee06c716 100644
--- a/chrome/browser/ui/browser_command_controller.cc
+++ b/chrome/browser/ui/browser_command_controller.cc
@@ -11,7 +11,6 @@
 #include "base/command_line.h"
 #include "base/debug/debugging_flags.h"
 #include "base/debug/profiler.h"
-#include "base/feature_list.h"
 #include "base/macros.h"
 #include "base/metrics/user_metrics.h"
 #include "build/build_config.h"
@@ -37,7 +36,6 @@
 #include "chrome/browser/ui/chrome_pages.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
 #include "chrome/browser/ui/webui/inspect_ui.h"
-#include "chrome/common/chrome_features.h"
 #include "chrome/common/content_restriction.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/profiling.h"
@@ -308,20 +306,14 @@ void BrowserCommandController::ExecuteCommandWithDisposition(
   switch (id) {
     // Navigation commands
     case IDC_BACKSPACE_BACK:
-      if (base::FeatureList::IsEnabled(features::kBackspaceGoesBackFeature))
-        GoBack(browser_, disposition);
-      else
-        window()->MaybeShowNewBackShortcutBubble(false);
+      window()->MaybeShowNewBackShortcutBubble(false);
       break;
     case IDC_BACK:
       window()->HideNewBackShortcutBubble();
       GoBack(browser_, disposition);
       break;
     case IDC_BACKSPACE_FORWARD:
-      if (base::FeatureList::IsEnabled(features::kBackspaceGoesBackFeature))
-        GoForward(browser_, disposition);
-      else
-        window()->MaybeShowNewBackShortcutBubble(true);
+      window()->MaybeShowNewBackShortcutBubble(true);
       break;
     case IDC_FORWARD:
       window()->HideNewBackShortcutBubble();