Fix error: timidity service can not be stopped

The timidity package is required by the Score MediaWiki extensions and
has been added in Nov 2012 as a dependency of wikimedia-task-appserver.
I suspect the package on Lucid provided and started a daemon which is
not recommended, hence a change that made puppet to ensure the daemon
does not run: https://gerrit.wikimedia.org/r/#/c/34262/

That is most probably a leftover from the Hardy distribution.

When bootstrapping instances for beta I came with the error:

  err: /Stage[main]/Mediawiki/Service[timidity]:
   Could not evaluate:
    Could not find init script for 'timidity'

The 'timidity' package is installed but there is no init script since it
comes from the uninstalled package 'timidity-daemon'.  If we ensure the
package is gone, I guess the service will be out as well.

Change-Id: I4a04e5eb94e1acb46373b28f620d434c8cd3a776
Merge "Fix error: timidity service can not be stopped" into production