Remove SimpleAOSP build version. Will revisit with better implementation.
Squashed commit of the following:

commit 1a98d4a0a475ddc5ce38caedc8f0d5424b602e44
Author: MrBaNkS <banksmi09@gmail.com>
Date:   Tue Sep 9 11:22:57 2014 -0500

    Revert "Add SimpleAOSP build version based on ro.delta.version"

    This reverts commit 8983735cb25c9dec8df6c60b557d6e6e562ce91f.

commit 21d2f9b8b1f2cc16bbead6ae901dc29afb5ddcd9
Author: MrBaNkS <banksmi09@gmail.com>
Date:   Tue Sep 9 11:22:39 2014 -0500

    Revert "Should have used Unknown"

    This reverts commit 8e846c13f786d3cfa5207230765226173bfedd3f.

commit 5f184527dacc898c1560a5dd1bdd80106183e8cf
Author: MrBaNkS <banksmi09@gmail.com>
Date:   Tue Sep 9 11:22:20 2014 -0500

    Revert "Update simpleaosp_strings.xml"

    This reverts commit ce93916b97dc3525dd9f1b684b69150b2fca919d.