Remove TODO comment.

  - Turns out the difference is the artifact file name. Don't want to
   use the OSGi version in the file name as it doesn't always match 
   the official release version (e.g., 2.0-rc1 might correspond to 2
   .0.0.-rc1 or something sanitized as such).

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1587945 13f79535-47bb-0310-9956-ffa450edef68