ELF: Remove redundant =delete.
ELF: Remove redundant =delete.

Since we have a (protected) constructor having two parameters,
the default constructor is not defined even if we don't do =delete.

git-svn-id: f6089bf0e6284f307027cef4f64114ee9ebb0424@233435 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/lld,llvm-mirror/lld