Update ntfs-3g to 2014.2.15

ntfs-3g was recently updated. The [original patch](https://github.com/nightscape/homebrew/compare/update_ntfs_3g?expand=1#diff-3112f57d84d11def1c33087be4621e58L70) didn't apply anymore and I didn't find similar code in the new `configure` script so I just removed it.
The new version installed fine on my system and I was able to mount and write to an external NTFS drive.