[llvm] Remove unused includes (NFC) (#144293)

These are identified by misc-include-cleaner.  I've filtered out those
that break builds.  Also, I'm staying away from llvm-config.h,
config.h, and Compiler.h, which likely cause platform- or
compiler-specific build failures.

llvm/lib/CodeGen/GlobalISel/CSEMIRBuilder.cpp

@@ -16,7 +16,6 @@
 #include "llvm/CodeGen/GlobalISel/GISelChangeObserver.h"
 #include "llvm/CodeGen/GlobalISel/Utils.h"
 #include "llvm/CodeGen/MachineInstrBuilder.h"
-#include "llvm/IR/DebugInfoMetadata.h"
 
 using namespace llvm;
 

llvm/lib/CodeGen/GlobalISel/LoadStoreOpt.cpp

@@ -30,7 +30,6 @@
 #include "llvm/CodeGen/Register.h"
 #include "llvm/CodeGen/TargetLowering.h"
 #include "llvm/CodeGen/TargetOpcodes.h"
-#include "llvm/IR/DebugInfoMetadata.h"
 #include "llvm/InitializePasses.h"
 #include "llvm/Support/AtomicOrdering.h"
 #include "llvm/Support/Casting.h"

llvm/lib/CodeGen/MachineBasicBlock.cpp

@@ -30,7 +30,6 @@
 #include "llvm/CodeGen/TargetSubtargetInfo.h"
 #include "llvm/Config/llvm-config.h"
 #include "llvm/IR/BasicBlock.h"
-#include "llvm/IR/DebugInfoMetadata.h"
 #include "llvm/IR/ModuleSlotTracker.h"
 #include "llvm/MC/MCAsmInfo.h"
 #include "llvm/MC/MCContext.h"

llvm/lib/IR/BasicBlock.cpp

@@ -21,7 +21,6 @@
 #include "llvm/IR/IntrinsicInst.h"
 #include "llvm/IR/LLVMContext.h"
 #include "llvm/IR/Type.h"
-#include "llvm/Support/CommandLine.h"
 #include "llvm/Support/Compiler.h"
 
 #include "LLVMContextImpl.h"

llvm/lib/IR/IRBuilder.cpp

@@ -15,7 +15,6 @@
 #include "llvm/ADT/ArrayRef.h"
 #include "llvm/IR/Constant.h"
 #include "llvm/IR/Constants.h"
-#include "llvm/IR/DebugInfoMetadata.h"
 #include "llvm/IR/DerivedTypes.h"
 #include "llvm/IR/Function.h"
 #include "llvm/IR/GlobalValue.h"

llvm/lib/Transforms/InstCombine/InstCombineLoadStoreAlloca.cpp

@@ -18,7 +18,6 @@
 #include "llvm/Analysis/AliasAnalysis.h"
 #include "llvm/Analysis/Loads.h"
 #include "llvm/IR/DataLayout.h"
-#include "llvm/IR/DebugInfoMetadata.h"
 #include "llvm/IR/IntrinsicInst.h"
 #include "llvm/IR/LLVMContext.h"
 #include "llvm/IR/PatternMatch.h"

llvm/lib/Transforms/Scalar/ConstantHoisting.cpp

@@ -44,7 +44,6 @@
 #include "llvm/IR/BasicBlock.h"
 #include "llvm/IR/Constants.h"
 #include "llvm/IR/DataLayout.h"
-#include "llvm/IR/DebugInfoMetadata.h"
 #include "llvm/IR/Dominators.h"
 #include "llvm/IR/Function.h"
 #include "llvm/IR/InstrTypes.h"

llvm/lib/Transforms/Scalar/SimplifyCFGPass.cpp

@@ -31,7 +31,6 @@
 #include "llvm/Analysis/TargetTransformInfo.h"
 #include "llvm/IR/Attributes.h"
 #include "llvm/IR/CFG.h"
-#include "llvm/IR/DebugInfoMetadata.h"
 #include "llvm/IR/Dominators.h"
 #include "llvm/IR/Instructions.h"
 #include "llvm/IR/ValueHandle.h"

llvm/lib/Transforms/Utils/BasicBlockUtils.cpp

@@ -28,11 +28,10 @@
 #include "llvm/IR/DebugInfoMetadata.h"
 #include "llvm/IR/Dominators.h"
 #include "llvm/IR/Function.h"
+#include "llvm/IR/IRBuilder.h"
 #include "llvm/IR/InstrTypes.h"
 #include "llvm/IR/Instruction.h"
 #include "llvm/IR/Instructions.h"
-#include "llvm/IR/IntrinsicInst.h"
-#include "llvm/IR/IRBuilder.h"
 #include "llvm/IR/LLVMContext.h"
 #include "llvm/IR/Type.h"
 #include "llvm/IR/User.h"

llvm/lib/Transforms/Utils/Local.cpp

@@ -49,7 +49,6 @@
 #include "llvm/IR/EHPersonalities.h"
 #include "llvm/IR/Function.h"
 #include "llvm/IR/GetElementPtrTypeIterator.h"
-#include "llvm/IR/GlobalObject.h"
 #include "llvm/IR/IRBuilder.h"
 #include "llvm/IR/InstrTypes.h"
 #include "llvm/IR/Instruction.h"