Revert r194865 and r194874.

This change is incorrect. If you delete virtual destructor of both a base class
and a subclass, then the following code:
  Base *foo = new Child();
  delete foo;
will not cause the destructor for members of Child class. As a result, I observe
plently of memory leaks. Notable examples I investigated are:
ObjectBuffer and ObjectBufferStream, AttributeImpl and StringSAttributeImpl.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194997 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Hexagon/HexagonMachineFunctionInfo.h b/lib/Target/Hexagon/HexagonMachineFunctionInfo.h
index c68416c..bd7b26a 100644
--- a/lib/Target/Hexagon/HexagonMachineFunctionInfo.h
+++ b/lib/Target/Hexagon/HexagonMachineFunctionInfo.h
@@ -1,4 +1,4 @@
-//=- HexagonMachineFunctionInfo.h - Hexagon machine function info -*- C++ -*-=//
+//=- HexagonMachineFuctionInfo.h - Hexagon machine function info --*- C++ -*-=//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -10,7 +10,6 @@
 #ifndef HexagonMACHINEFUNCTIONINFO_H
 #define HexagonMACHINEFUNCTIONINFO_H
 
-#include <map>
 #include "llvm/CodeGen/MachineFunction.h"
 
 namespace llvm {
@@ -34,7 +33,6 @@
 
   std::map<const MachineInstr*, unsigned> PacketInfo;
 
-  virtual void anchor();
 
 public:
   HexagonMachineFunctionInfo() : SRetReturnReg(0), HasClobberLR(0),