Following Chris's advice, I'm pruning some unnecessary .h includes that I'm

noticing. Since Module includes Function, and eventually, BasicBlock and
GlobalVariable, the last three are unnecessary to be included directly.

llvm-svn: 3713

llvm/lib/Transforms/IPO/MutateStructTypes.cpp

@@ -14,9 +14,6 @@
 #include "llvm/Transforms/IPO/MutateStructTypes.h"
 #include "llvm/DerivedTypes.h"
 #include "llvm/Module.h"
-#include "llvm/Function.h"
-#include "llvm/BasicBlock.h"
-#include "llvm/GlobalVariable.h"
 #include "llvm/SymbolTable.h"
 #include "llvm/iPHINode.h"
 #include "llvm/iMemory.h"