remove suggestion to use python-clandestined
remove suggestion to use python-clandestined

this note is misleading, as the hasher is expected to expose a get_node
method. clandestined's RendezvousHash does not implement this method.

when clandestined's implementation was copied into pymemcached in commit
cff5abfad59baa593996fe7e240fd3944e2c4af2, the method was renamed from
find_node, breaking compatibility.

sontek/pymemcache,bwalks/pymemcache,sontek/pymemcache,pinterest/pymemcache,pinterest/pymemcache