Revert of Update of change event for datetime input type

Source/core/html/shadow/DateTimeEditElement.cpp

Index: Source/core/html/shadow/DateTimeEditElement.cpp
diff --git a/Source/core/html/shadow/DateTimeEditElement.cpp b/Source/core/html/shadow/DateTimeEditElement.cpp
index 684993c23c38185138e3e6d14e662af4fbf344b4..7149458f13986d06fe685783e3358e997b0fbb70 100644
--- a/Source/core/html/shadow/DateTimeEditElement.cpp
+++ b/Source/core/html/shadow/DateTimeEditElement.cpp
@@ -694,12 +694,6 @@
     return m_editControlOwner ? m_editControlOwner->localeIdentifier() : nullAtom;
 }
 
-void DateTimeEditElement::fieldDidChangeValueByKeyboard()
-{
-    if (m_editControlOwner)
-        m_editControlOwner->editControlDidChangeValueByKeyboard();
-}
-
 void DateTimeEditElement::readOnlyStateChanged()
 {
     updateUIState();