[ELF] - Remove excessive helper. NFC.
[ELF] - Remove excessive helper. NFC.

Removes addRegular() helper that looks excessive from Writer.cpp.

Differential revision: https://reviews.llvm.org/D39006

git-svn-id: f6089bf0e6284f307027cef4f64114ee9ebb0424@316068 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/lld,llvm-mirror/lld