Build fix: remove initializeJumpInstrTablesPass() call from LTO

This was incurring an unsatisfied dependency on CodeGen from LTO breaking
shared builds:

Undefined symbols for architecture x86_64:
  "llvm::initializeJumpInstrTablesPass(llvm::PassRegistry&)", referenced from:
      llvm::LTOCodeGenerator::initializeLTOPasses() in LTOCodeGenerator.cpp.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Removed as a temporary measure pending feedback from the author.