CBQE-0 remove upgrade from 3.0.0 to 3.0.x

Change-Id: Id18feb3d8d2884ff9f57615445c2a0c149dd136b
Reviewed-on: http://review.couchbase.org/43000
Reviewed-by: Thuan Nguyen <soccon@gmail.com>
Tested-by: Thuan Nguyen <soccon@gmail.com>