[ModuleInliner] Remove unnecessary #includes (NFC)

While I am at it, this patch removes an unnecessary forward
declaration.

diff --git a/llvm/include/llvm/Analysis/InlineOrder.h b/llvm/include/llvm/Analysis/InlineOrder.h
index dfea512..efedf27 100644 (file)
--- a/llvm/include/llvm/Analysis/InlineOrder.h
+++ b/llvm/include/llvm/Analysis/InlineOrder.h
@@ -9,17 +9,12 @@
 #ifndef LLVM_ANALYSIS_INLINEORDER_H
 #define LLVM_ANALYSIS_INLINEORDER_H
 
-#include "llvm/ADT/DenseMap.h"
 #include "llvm/ADT/STLFunctionalExtras.h"
-#include "llvm/ADT/SmallVector.h"
 #include "llvm/Analysis/InlineCost.h"
-#include "llvm/IR/InstrTypes.h"
-#include <algorithm>
 #include <utility>
 
 namespace llvm {
 class CallBase;
-class Function;
 
 template <typename T> class InlineOrder {
 public: