fusefronted: drop unused file.String() function
fusefronted: drop unused file.String() function

This is a very old leftover.

rfjakob/gocryptfs,rfjakob/gocryptfs,davesteele/gocryptfs,rfjakob/gocryptfs,davesteele/gocryptfs,davesteele/gocryptfs,rfjakob/gocryptfs