Remove mail blockquote special case handling.

Source/WebCore/editing/BreakBlockquoteCommand.cpp

Index: Source/WebCore/editing/BreakBlockquoteCommand.cpp
diff --git a/Source/WebCore/editing/BreakBlockquoteCommand.cpp b/Source/WebCore/editing/BreakBlockquoteCommand.cpp
index e4ee4c389d40ecc1842b1cdf9b6a3601deda20a8..86eaf09329f6a6cc2a9bf7fad0044275d56e8e96 100644
--- a/Source/WebCore/editing/BreakBlockquoteCommand.cpp
+++ b/Source/WebCore/editing/BreakBlockquoteCommand.cpp
@@ -66,11 +66,6 @@ void BreakBlockquoteCommand::doApply()
     // be in the first node that we need to move (there are a few exceptions to this, see below).
     Position pos = endingSelection().start().downstream();
     
-    // Find the top-most blockquote from the start.
-    Node* topBlockquote = highestEnclosingNodeOfType(pos, isMailBlockquote);
-    if (!topBlockquote || !topBlockquote->parentNode() || !topBlockquote->isElementNode())
-        return;
-    
     RefPtr<Element> breakNode = createBreakElement(document());
 
     bool isLastVisPosInNode = isLastVisiblePositionInNode(visiblePos, topBlockquote);
@@ -99,10 +94,6 @@ void BreakBlockquoteCommand::doApply()
     if (lineBreakExistsAtVisiblePosition(visiblePos))
         pos = pos.next();
         
-    // Adjust the position so we don't split at the beginning of a quote.  
-    while (isFirstVisiblePositionInNode(VisiblePosition(pos), enclosingNodeOfType(pos, isMailBlockquote)))
-        pos = pos.previous();
-    
     // startNode is the first node that we need to move to the new blockquote.
     Node* startNode = pos.deprecatedNode();