Remove unused constants in Filesystem operator
Remove unused constants in Filesystem operator

Signed-off-by: John Spray <a0ab4ec42db5a70bbcbfc74d8971c0305528d92b@redhat.com>

rook/rook,rook/rook,rook/nfs,rook/rook,rook/rook,rook/nfs,rook/rook,rook/nfs