Revert "[ELF] Fix linking when a regular object defines a symbol that is used in a DSO"

This commit reverts r218259 because it needed to be checked in with
a few binary files for the test.

git-svn-id: https://llvm.org/svn/llvm-project/lld/trunk@218262 91177308-0d34-0410-b5e6-96231b3b80d8