Remove NamedMDNode::dump

[matekm]

Summary

Comment for this method inform that it was created for "Allow printing of NamedMDNodes from the debugger", but it is not used anywhere and can be removed. (just to clean public interface of NamedMDNode).

[dblaikie]

As the comment says, dumping in the debugger is nice to do - so it's probably worth keeping this here.

[echristo]

Yeah, let's not remove any of the dumping support. Thanks!

include/llvm/IR/Metadata.h

   /// print - Implement operator<< on NamedMDNode.
   void print(raw_ostream &ROS, AssemblyAnnotationWriter *AAW = 0) const;
 
-  /// dump() - Allow printing of NamedMDNodes from the debugger.
-  void dump() const;
-
   // ---------------------------------------------------------------------------
   // Operand Iterator interface...
   //

lib/IR/AsmWriter.cpp

 // Module::dump() - Allow printing of Modules from the debugger.
 void Module::dump() const { print(dbgs(), 0); }
 
-// NamedMDNode::dump() - Allow printing of NamedMDNodes from the debugger.
-void NamedMDNode::dump() const { print(dbgs(), 0); }