Revert 218408 - Report endianness in output of {dwarf, obj}dump

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218414 91177308-0d34-0410-b5e6-96231b3b80d8
Revert 218407 - Add support for ARM and AArch64 BE object files

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218415 91177308-0d34-0410-b5e6-96231b3b80d8
Revert 218406 - Refactor the RelocVisitor::visit method

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218416 91177308-0d34-0410-b5e6-96231b3b80d8