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

Identified with clangd.

Author: kazutakahirata

llvm/include/llvm/Analysis/IVDescriptors.h

@@ -13,7 +13,6 @@
 #ifndef LLVM_ANALYSIS_IVDESCRIPTORS_H
 #define LLVM_ANALYSIS_IVDESCRIPTORS_H
 
-#include "llvm/ADT/MapVector.h"
 #include "llvm/ADT/SmallPtrSet.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/IR/IntrinsicInst.h"

llvm/include/llvm/ObjectYAML/OffloadYAML.h

@@ -15,7 +15,6 @@
 #ifndef LLVM_OBJECTYAML_OFFLOADYAML_H
 #define LLVM_OBJECTYAML_OFFLOADYAML_H
 
-#include "llvm/ADT/MapVector.h"
 #include "llvm/Object/OffloadBinary.h"
 #include "llvm/ObjectYAML/YAML.h"
 #include "llvm/Support/YAMLTraits.h"

llvm/lib/Target/AArch64/AArch64CollectLOH.cpp

@@ -102,7 +102,6 @@
 #include "AArch64MachineFunctionInfo.h"
 #include "llvm/ADT/BitVector.h"
 #include "llvm/ADT/DenseMap.h"
-#include "llvm/ADT/MapVector.h"
 #include "llvm/ADT/SmallSet.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/ADT/Statistic.h"

llvm/lib/Transforms/Scalar/SCCP.cpp

@@ -18,7 +18,6 @@
 
 #include "llvm/Transforms/Scalar/SCCP.h"
 #include "llvm/ADT/DenseMap.h"
-#include "llvm/ADT/MapVector.h"
 #include "llvm/ADT/STLExtras.h"
 #include "llvm/ADT/SmallPtrSet.h"
 #include "llvm/ADT/SmallVector.h"

llvm/unittests/Bitcode/BitReaderTest.cpp

@@ -7,7 +7,6 @@
 //===----------------------------------------------------------------------===//
 
 #include "BitReaderTestCode.h"
-#include "llvm/ADT/MapVector.h"
 #include "llvm/ADT/STLExtras.h"
 #include "llvm/ADT/SmallString.h"
 #include "llvm/AsmParser/Parser.h"