Remove unused '_AllocData' type

Summary: This got left behind as the code changed. Not used.

Test Plan: Changes

Reviewers: naphat

Reviewed By: naphat

Subscribers: changesbot, anupc

Differential Revision: https://tails.corp.dropbox.com/D225688

changes/api/jobstep_allocate.py

@@ -1,7 +1,6 @@
 from __future__ import absolute_import, division, unicode_literals
 import json
 import logging
-from collections import namedtuple
 from datetime import datetime
 from uuid import UUID
 from flask import request
@@ -18,10 +17,6 @@
 from changes.models.jobstep import JobStep
 from changes.constants import DEFAULT_CPUS, DEFAULT_MEMORY_MB
 
-# Named tuple for data from the BuildStep used to pick JobSteps to allocate,
-# to make sure we don't need to refetch (and risk inconsistency).
-_AllocData = namedtuple('_AllocData', ['cpus', 'memory', 'command'])
-
 
 class JobStepAllocateAPIView(APIView):
     def find_next_jobsteps(self, limit=10, cluster=None):