[TASK] Cleanup the ext_emconf files

Change-Id: I59bd4568e1949c4037907a1f2f7cb4591b74c18b
Reviewed-on: http://review.typo3.org/32261
Reviewed-by: Mathias Brodala <mbrodala@pagemachine.de>
Reviewed-by: Tim Lochmüller <tim@fruit-lab.de>
Tested-by: Tim Lochmüller <tim@fruit-lab.de>