Revert "[AArch64] Revive optimize add/sub with immediate through MIPeepholeOpt"

This reverts commit e6698f09.

This commit appears to introduce new machine verifier failures when
building the llvm-test-suite with `-mllvm -verify-machineinstrs` enabled:

https://green.lab.llvm.org/green/job/test-suite-verify-machineinstrs-aarch64-O3/11061/

FAILED: MultiSource/Benchmarks/Olden/health/CMakeFiles/health.dir/health.c.o
/Users/buildslave/jenkins/workspace/test-suite-verify-machineinstrs-aarch64-O3/test-suite-build/tools/timeit --summary MultiSource/Benchmarks/Olden/health/CMakeFiles/health.dir/health.c.o.time /Users/buildslave/jenkins/workspace/test-suite-verify-machineinstrs-aarch64-O3/compiler/bin/clang -DNDEBUG  -B /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin    -Wno-unused-command-line-argument -mllvm -verify-machineinstrs -O3 -arch arm64 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.5.sdk   -w -Werror=date-time -DTORONTO -MD -MT MultiSource/Benchmarks/Olden/health/CMakeFiles/health.dir/health.c.o -MF MultiSource/Benchmarks/Olden/health/CMakeFiles/health.dir/health.c.o.d -o MultiSource/Benchmarks/Olden/health/CMakeFiles/health.dir/health.c.o   -c /Users/buildslave/jenkins/workspace/test-suite-verify-machineinstrs-aarch64-O3/test-suite/MultiSource/Benchmarks/Olden/health/health.c
*** Bad machine code: Illegal virtual register for instruction ***
- function:    alloc_tree
- basic block: %bb.1 if.else (0x7fc0db8f8bb0)
- instruction: %31:gpr64 = nsw MADDXrrr killed %39:gpr64sp, killed %25:gpr64, $xzr
- operand 1:   killed %39:gpr64sp
Expected a GPR64 register, but got a GPR64sp register
fatal error: error in backend: Found 1 machine code errors.
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace, preprocessed source, and associated run script.
Stack dump:
0.	Program arguments: /Users/buildslave/jenkins/workspace/test-suite-verify-machineinstrs-aarch64-O3/compiler/bin/clang -DNDEBUG -B /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin -Wno-unused-command-line-argument -mllvm -verify-machineinstrs -O3 -arch arm64 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.5.sdk -w -Werror=date-time -DTORONTO -MD -MT MultiSource/Benchmarks/Olden/health/CMakeFiles/health.dir/health.c.o -MF MultiSource/Benchmarks/Olden/health/CMakeFiles/health.dir/health.c.o.d -o MultiSource/Benchmarks/Olden/health/CMakeFiles/health.dir/health.c.o -c /Users/buildslave/jenkins/workspace/test-suite-verify-machineinstrs-aarch64-O3/test-suite/MultiSource/Benchmarks/Olden/health/health.c
1.	<eof> parser at end of file
2.	Code generation
3.	Running pass 'Function Pass Manager' on module '/Users/buildslave/jenkins/workspace/test-suite-verify-machineinstrs-aarch64-O3/test-suite/MultiSource/Benchmarks/Olden/health/health.c'.
4.	Running pass 'Verify generated machine code' on function '@alloc_tree'
Stack dump without symbol names (ensure you have llvm-symbolizer in your PATH or set the environment var `LLVM_SYMBOLIZER_PATH` to point to it):
0  clang         0x000000011191896b llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) + 43
1  clang         0x00000001119179b5 llvm::sys::RunSignalHandlers() + 85
2  clang         0x00000001119180e2 llvm::sys::CleanupOnSignal(unsigned long) + 210
3  clang         0x0000000111849f6a (anonymous namespace)::CrashRecoveryContextImpl::HandleCrash(int, unsigned long) + 106
4  clang         0x0000000111849ee8 llvm::CrashRecoveryContext::HandleExit(int) + 24
5  clang         0x0000000111914acc llvm::sys::Process::Exit(int, bool) + 44
6  clang         0x000000010f4e9be9 LLVMErrorHandler(void*, char const*, bool) + 89
7  clang         0x0000000114eba333 llvm::report_fatal_error(llvm::Twine const&, bool) + 323
8  clang         0x0000000110d8c620 (anonymous namespace)::MachineVerifier::BBInfo::~BBInfo() + 0
9  clang         0x0000000110cdddca llvm::MachineFunctionPass::runOnFunction(llvm::Function&) + 378
10 clang         0x00000001110b0154 llvm::FPPassManager::runOnFunction(llvm::Function&) + 1092
11 clang         0x00000001110b6268 llvm::FPPassManager::runOnModule(llvm::Module&) + 72
12 clang         0x00000001110b074a llvm::legacy::PassManagerImpl::run(llvm::Module&) + 986
13 clang         0x0000000111c20ad4 clang::EmitBackendOutput(clang::DiagnosticsEngine&, clang::HeaderSearchOptions const&, clang::CodeGenOptions const&, clang::TargetOptions const&, clang::LangOptions const&, llvm::StringRef, llvm::Module*, clang::BackendAction, std::__1::unique_ptr<llvm::raw_pwrite_stream, std::__1::default_delete<llvm::raw_pwrite_stream> >) + 3764
14 clang         0x0000000111f6dd31 clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&) + 1905
15 clang         0x00000001131a28b3 clang::ParseAST(clang::Sema&, bool, bool) + 643
16 clang         0x00000001122b02a4 clang::FrontendAction::Execute() + 84
17 clang         0x000000011222d6a9 clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) + 873
18 clang         0x000000011232faf5 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) + 661
19 clang         0x000000010f4e9860 cc1_main(llvm::ArrayRef<char const*>, char const*, void*) + 2544
20 clang         0x000000010f4e7168 ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&) + 312
21 clang         0x00000001120ab187 void llvm::function_ref<void ()>::callback_fn<clang::driver::CC1Command::Execute(llvm::ArrayRef<llvm::Optional<llvm::StringRef> >, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >*, bool*) const::$_1>(long) + 23
22 clang         0x0000000111849eb4 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) + 228
23 clang         0x00000001120aac24 clang::driver::CC1Command::Execute(llvm::ArrayRef<llvm::Optional<llvm::StringRef> >, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >*, bool*) const + 324
24 clang         0x000000011207b85d clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&) const + 221
25 clang         0x000000011207bdad clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&, llvm::SmallVectorImpl<std::__1::pair<int, clang::driver::Command const*> >&) const + 125
26 clang         0x0000000112092f7c clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::__1::pair<int, clang::driver::Command const*> >&) + 204
27 clang         0x000000010f4e6977 main + 10375
28 libdyld.dylib 0x00007fff6be90cc9 start + 1
29 libdyld.dylib 0x0000000000000018 start + 18446603338705728336
clang-14: error: clang frontend command failed with exit code 70 (use -v to see invocation)
clang version 14.0.0 (https://github.com/llvm/llvm-project.git c90d136b)
Target: arm64-apple-darwin19.5.0
Thread model: posix
InstalledDir: /Users/buildslave/jenkins/workspace/test-suite-verify-machineinstrs-aarch64-O3/compiler/bin
clang-14: note: diagnostic msg:
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