Revert of Makes sure the keyboard typing isn't blocked when InputMethod::OnFocus() is not correctly

ui/base/ime/mock_input_method.cc

Index: ui/base/ime/mock_input_method.cc
diff --git a/ui/base/ime/mock_input_method.cc b/ui/base/ime/mock_input_method.cc
index e09e2a84452fb4e42b3602e8b97a203c6d743b78..f2cf8ebc67f5c4a29848e5740006f573c640027d 100644
--- a/ui/base/ime/mock_input_method.cc
+++ b/ui/base/ime/mock_input_method.cc
@@ -5,7 +5,6 @@
 #include "ui/base/ime/mock_input_method.h"
 
 #include "ui/base/ime/input_method_delegate.h"
-#include "ui/base/ime/input_method_log_collector.h"
 #include "ui/events/event.h"
 
 namespace ui {
@@ -117,8 +116,4 @@
   observer_list_.RemoveObserver(observer);
 }
 
-InputMethodLogCollector* MockInputMethod::GetLogCollector() {
-  return nullptr;
-}
-
 }  // namespace ui