Revert r227804: Use fseek/ftell instead of fseeko/ftello when Newlib is the libc

This change is causing a driver crash on libcxx-libcxxabi-x86_64-linux-ubuntu-msan


git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@227806 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed