Remove outdated/uneeded files to make dist smaller

MANIFEST.in

@@ -7,9 +7,9 @@ include TODO
 include setup.cfg
 include setup.py
 recursive-include celery *.py
-recursive-include funtests *.py
 recursive-include docs *
 recursive-include extra *
 recursive-include examples *
 recursive-include requirements *.txt
 prune *.pyc
+prune *.sw*

docs/internals/worker.rst

@@ -14,8 +14,6 @@ The worker consists of 4 main components: the consumer, the scheduler,
 the mediator and the task pool. All these components runs in parallel working
 with two data structures: the ready queue and the ETA schedule.
 
-.. image:: ../images/Celery1.0-inside-worker.jpg
-
 Data structures
 ===============