Revert of Update of change event for input type number

Source/core/html/forms/TextFieldInputType.cpp

Index: Source/core/html/forms/TextFieldInputType.cpp
diff --git a/Source/core/html/forms/TextFieldInputType.cpp b/Source/core/html/forms/TextFieldInputType.cpp
index 6f1365e6f7da4aaa865031947d1e77c57b118b0b..807f2623d1cd28b3bfbb431cd43d1060fbc4538a 100644
--- a/Source/core/html/forms/TextFieldInputType.cpp
+++ b/Source/core/html/forms/TextFieldInputType.cpp
@@ -222,7 +222,6 @@
         spinButtonStepDown();
     else
         return;
-    element().dispatchFormControlChangeEvent();
     event->setDefaultHandled();
 }
 
@@ -576,9 +575,4 @@
     return shouldSpinButtonRespondToMouseEvents() && element().focused();
 }
 
-void TextFieldInputType::spinButtonDidReleaseMouseCapture()
-{
-    element().dispatchFormControlChangeEvent();
-}
-
 } // namespace WebCore