llvm-nm only needs the target to parse module level assembly in bitcode. It doesn't need a disassembler or codegen.
llvm-objdump needs to be able to disassemble a file, but doesn't need asm parsers or codegen.
This reduces the sizes of these tools by a few MB each, depending on how many backends are linked in.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@249632 91177308-0d34-0410-b5e6-96231b3b80d8