382 Synchronize assets asynchronously

git-svn-id: svn+ssh://svn.code.sf.net/p/cmusphinx/code/trunk/pocketsphinx-android@12443 94700074-3cef-4d97-a70e-9c8c206c02f5
Remove unsed code.

git-svn-id: svn+ssh://svn.code.sf.net/p/cmusphinx/code/trunk/pocketsphinx-android@12444 94700074-3cef-4d97-a70e-9c8c206c02f5