dev-util/molecule: 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.

dev-util/molecule/metadata.xml

@@ -4,12 +4,10 @@
 	<maintainer type="person">
 		<email>[email protected]</email>
 		<name>Ettore Di Giacinto</name>
-		<description>Assign bugs to him</description>
 	</maintainer>
 	<maintainer type="person">
 		<email>[email protected]</email>
 		<name>Fabio Erculiani</name>
-		<description>CC on bugs</description>
 	</maintainer>
 	<use>
 		<flag name="plugins">Add plugins provided by dev-util/molecule-plugins</flag>