Removed unneeded dependency

Ignore-this: be42463f959505f18c19a628c95ae4a7

darcs-hash:20120904082831-56b4d-b3638369197ad9d4bcdf818fb0bdf262b8e02342
Adapted to eventlet package rename

Ignore-this: 5da3f9be71b360e274ca965561d69078

darcs-hash:20120904084647-56b4d-b97d14cf4b4e2e4ebcf62efaa1e92ccbde66bc9a