Remove unused object.opEquals(TypeInfo, TypeInfo)

It seems that just had been forgotten to remove it when bug 3917 was fixed.
Merge pull request #438 from 9rnsr/fix_opeq

Remove unused object.opEquals(TypeInfo, TypeInfo)
merge
merge
Merge branch 'master' of github.com:D-Programming-Language/druntime
put minit() back in
Merge pull request #439 from WalterBright/addminfo

add minit() back in