Remove unused editing related member functions from WebViewClient

LayoutTests/editing/undo/replace-text-in-node-preserving-markers-crash-expected.txt

Index: LayoutTests/editing/undo/replace-text-in-node-preserving-markers-crash-expected.txt
diff --git a/LayoutTests/editing/undo/replace-text-in-node-preserving-markers-crash-expected.txt b/LayoutTests/editing/undo/replace-text-in-node-preserving-markers-crash-expected.txt
index d37525479a7098298ccb1a4a447358bc5a1557b8..47672e7bdc071df121324ace47d59687c80df548 100644
--- a/LayoutTests/editing/undo/replace-text-in-node-preserving-markers-crash-expected.txt
+++ b/LayoutTests/editing/undo/replace-text-in-node-preserving-markers-crash-expected.txt
@@ -1,23 +1,16 @@
-EDITING DELEGATE: shouldBeginEditingInDOMRange:range from 0 of DIV > BODY > HTML > #document to 2 of DIV > BODY > HTML > #document
-EDITING DELEGATE: webViewDidBeginEditing:WebViewDidBeginEditingNotification
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
-EDITING DELEGATE: shouldDeleteDOMRange:range from 7 of #text > SYMBOL > UL > DIV > BODY > HTML > #document to 8 of #text > SYMBOL > UL > DIV > BODY > HTML > #document
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChange:WebViewDidChangeNotification
-EDITING DELEGATE: shouldDeleteDOMRange:range from 6 of #text > SYMBOL > UL > DIV > BODY > HTML > #document to 7 of #text > SYMBOL > UL > DIV > BODY > HTML > #document
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChange:WebViewDidChangeNotification
-EDITING DELEGATE: shouldDeleteDOMRange:range from 5 of #text > SYMBOL > UL > DIV > BODY > HTML > #document to 6 of #text > SYMBOL > UL > DIV > BODY > HTML > #document
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
-EDITING DELEGATE: shouldChangeSelectedDOMRange:range from 4 of #text > SYMBOL > UL > DIV > BODY > HTML > #document to 4 of #text > SYMBOL > UL > DIV > BODY > HTML > #document toDOMRange:range from 5 of #text > SYMBOL > UL > DIV > BODY > HTML > #document to 5 of #text > SYMBOL > UL > DIV > BODY > HTML > #document affinity:NSSelectionAffinityDownstream stillSelecting:FALSE
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChange:WebViewDidChangeNotification
-EDITING DELEGATE: shouldDeleteDOMRange:range from 4 of #text > SYMBOL > UL > DIV > BODY > HTML > #document to 5 of #text > SYMBOL > UL > DIV > BODY > HTML > #document
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChange:WebViewDidChangeNotification