[ios] Remove IDC_CLOSE_TAB

ios/chrome/test/app/chrome_test_util.mm

Index: ios/chrome/test/app/chrome_test_util.mm
diff --git a/ios/chrome/test/app/chrome_test_util.mm b/ios/chrome/test/app/chrome_test_util.mm
index 32d669fb7cbb35df9c28b48a24307bdc1ab895af..a6cb4ca02ac55fb1df767abc72217e47d341dd0e 100644
--- a/ios/chrome/test/app/chrome_test_util.mm
+++ b/ios/chrome/test/app/chrome_test_util.mm
@@ -133,6 +133,12 @@ NSUInteger GetRegisteredKeyCommandsCount() {
   return mainBVC.keyCommands.count;
 }
 
+id<BrowserCommands> BrowserCommandDispatcherForMainBVC() {
+  BrowserViewController* mainBVC =
+      GetMainController().browserViewInformation.mainBVC;
+  return mainBVC.browserCommandDispatcher;
+}
+
 void RunCommandWithActiveViewController(GenericChromeCommand* command) {
   [GetActiveViewController() chromeExecuteCommand:command];
 }