Build: bower.json: remove moot `version` field
Build: bower.json: remove moot `version` field

Related:
https://github.com/bower/bower.json-spec/commit/a325da3d79baab018c572d75dc1781b12322f6cd

Close gh-2304

jquery/jquery,roytoo/jquery,jquery/jquery,roytoo/jquery,jquery/jquery,roytoo/jquery