Eliminate the need for code delete events in CPU profiler.

src/profile-generator-inl.h

Index: src/profile-generator-inl.h
diff --git a/src/profile-generator-inl.h b/src/profile-generator-inl.h
index 8f4bc6c1f23f2c87255ed65eed5166326dec4b55..88d6e879410911c83f795e5c062a9c9f1c48a117 100644
--- a/src/profile-generator-inl.h
+++ b/src/profile-generator-inl.h
@@ -78,22 +78,6 @@ ProfileNode::ProfileNode(ProfileTree* tree, CodeEntry* entry)
 }
 
 
-void CodeMap::AddCode(Address addr, CodeEntry* entry, unsigned size) {
-  CodeTree::Locator locator;
-  tree_.Insert(addr, &locator);
-  locator.set_value(CodeEntryInfo(entry, size));
-}
-
-
-void CodeMap::MoveCode(Address from, Address to) {
-  tree_.Move(from, to);
-}
-
-void CodeMap::DeleteCode(Address addr) {
-  tree_.Remove(addr);
-}
-
-
 CodeEntry* ProfileGenerator::EntryForVMState(StateTag tag) {
   switch (tag) {
     case GC: