app-editors/xemacs: Remove useless maintainer <description/>

Remove useless/redundant maintainer <description/>. It does not benefit
bug wrangling, and only wastes developer's time on reading it. Few tips:

- assignee/CC is implied by ordering, there is no reason to repeat it,
- we know that maintainer is maintainer (la la la la la),
- most of adjectives for maintainer are of no value and/or are obvious.

app-editors/xemacs/metadata.xml

@@ -3,7 +3,6 @@
 <pkgmetadata>
  <maintainer type="project">
  <email>[email protected]</email>
- <description>Primary Maintainer</description>
  </maintainer>
  <use>
  <flag name="athena">Chooses the MIT Athena widget set</flag>