Disable Wikimania Scholarships until 2015 cycle

The content of the Wikimania Scholarships application form tends to
change greatly from year to year. Now that the 2014 application cycle is
closed there is little value in continuing to receive updated
translations. This should remain disabled until the content is
refreshed for the 2015 application cycle.

Change-Id: I6a205b16b0c12244bb38de0adef4e57b36e73d79