[llvm] Stop including llvm/ADT/StringMap.h (NFC)

Identified with clangd.

Author: kazutakahirata

llvm/include/llvm/ProfileData/SampleProf.h

@@ -17,7 +17,6 @@
 #include "llvm/ADT/DenseSet.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/ADT/StringExtras.h"
-#include "llvm/ADT/StringMap.h"
 #include "llvm/ADT/StringRef.h"
 #include "llvm/IR/Function.h"
 #include "llvm/IR/GlobalValue.h"

llvm/include/llvm/Transforms/IPO/FunctionImport.h

@@ -10,7 +10,6 @@
 #define LLVM_TRANSFORMS_IPO_FUNCTIONIMPORT_H
 
 #include "llvm/ADT/DenseSet.h"
-#include "llvm/ADT/StringMap.h"
 #include "llvm/ADT/StringRef.h"
 #include "llvm/IR/GlobalValue.h"
 #include "llvm/IR/ModuleSummaryIndex.h"

llvm/include/llvm/Transforms/IPO/ProfiledCallGraph.h

@@ -10,7 +10,6 @@
 #define LLVM_TRANSFORMS_IPO_PROFILEDCALLGRAPH_H
 
 #include "llvm/ADT/GraphTraits.h"
-#include "llvm/ADT/StringMap.h"
 #include "llvm/ADT/StringRef.h"
 #include "llvm/ProfileData/SampleProf.h"
 #include "llvm/ProfileData/SampleProfReader.h"

llvm/include/llvm/Transforms/IPO/SampleContextTracker.h

@@ -15,7 +15,6 @@
 #ifndef LLVM_TRANSFORMS_IPO_SAMPLECONTEXTTRACKER_H
 #define LLVM_TRANSFORMS_IPO_SAMPLECONTEXTTRACKER_H
 
-#include "llvm/ADT/StringMap.h"
 #include "llvm/ADT/StringRef.h"
 #include "llvm/ADT/iterator.h"
 #include "llvm/ProfileData/SampleProf.h"