Remove src/lib/crypto/krb/enc_provider, which was accidentally
resurrected in the S4U merge after being moved into the back-end
directories in r22707.


https://github.com/krb5/krb5/commit/fe343992fc10d63cb1be982cc71520981fed3c0d
Commit By: ghudson
Revision: 22744
Changed Files:
D   trunk/src/lib/crypto/krb/enc_provider/