Remove unused imports.

src/supervisor/process.py

@@ -36,7 +36,6 @@ from supervisor.dispatchers import EventListenerStates
 from supervisor import events
 
 from supervisor.datatypes import RestartUnconditionally
-from supervisor.datatypes import RestartWhenExitUnexpected
 
 class Subprocess:
 

src/supervisor/rpcinterface.py

@@ -3,8 +3,6 @@ import time
 import datetime
 import errno
 
-from supervisor.datatypes import Automatic
-
 from supervisor.options import readFile
 from supervisor.options import tailFile
 from supervisor.options import NotExecutable

src/supervisor/supervisord.py

@@ -42,7 +42,6 @@ Options:
 """
 
 import os
-import sys
 import time
 import errno
 import select