revert @898 which added maven support

There are more problems than I initially thought with using maven + eclipse +
apklib projects, so reverting this change.  We'll explore other options for
doing dependency management, but for now we're prioritizing making sure that
building in eclipse works well.  I will follow up this commit with the
(re)addition of a readme file that includes proper instructions for building
from command line using ant.


git-svn-id: https://android.svn.wordpress.org/trunk@899 a6565c4b-a94d-4d28-bb26-aa9e5ab542c0