[llvm-objdump] Remove unused includes (NFC) (#141390)

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/tools/llvm-objdump/MachODump.cpp

@@ -14,7 +14,6 @@
 
 #include "ObjdumpOptID.h"
 #include "llvm-objdump.h"
-#include "llvm-c/Disassembler.h"
 #include "llvm/ADT/STLExtras.h"
 #include "llvm/ADT/StringExtras.h"
 #include "llvm/BinaryFormat/MachO.h"
@@ -41,11 +40,8 @@
 #include "llvm/Support/Endian.h"
 #include "llvm/Support/Format.h"
 #include "llvm/Support/FormattedStream.h"
-#include "llvm/Support/GraphWriter.h"
 #include "llvm/Support/LEB128.h"
 #include "llvm/Support/MemoryBuffer.h"
-#include "llvm/Support/TargetSelect.h"
-#include "llvm/Support/ToolOutputFile.h"
 #include "llvm/Support/WithColor.h"
 #include "llvm/Support/raw_ostream.h"
 #include "llvm/TargetParser/Triple.h"

llvm/tools/llvm-objdump/OffloadDump.cpp

@@ -16,7 +16,6 @@
 #include "llvm/Object/ELFObjectFile.h"
 #include "llvm/Object/OffloadBinary.h"
 #include "llvm/Object/OffloadBundle.h"
-#include "llvm/Support/Alignment.h"
 
 using namespace llvm;
 using namespace llvm::object;

llvm/tools/llvm-objdump/llvm-objdump.cpp

@@ -56,7 +56,6 @@
 #include "llvm/Object/MachO.h"
 #include "llvm/Object/MachOUniversal.h"
 #include "llvm/Object/OffloadBinary.h"
-#include "llvm/Object/OffloadBundle.h"
 #include "llvm/Object/Wasm.h"
 #include "llvm/Option/Arg.h"
 #include "llvm/Option/ArgList.h"
@@ -66,8 +65,6 @@
 #include "llvm/Support/Errc.h"
 #include "llvm/Support/FileSystem.h"
 #include "llvm/Support/Format.h"
-#include "llvm/Support/FormatVariadic.h"
-#include "llvm/Support/GraphWriter.h"
 #include "llvm/Support/LLVMDriver.h"
 #include "llvm/Support/MemoryBuffer.h"
 #include "llvm/Support/SourceMgr.h"