Revert "Merge pull request #125 from geopaparazzi/spatialite_views"

This reverts pull request 125 about spatial views, which is giving the problems described in mailinglist.

This reverts commit 3b802e871e269ecaa4ed0fa47ddab7d7b1b16785, reversing
changes made to 1effd70f272805288a3eb320202e6f62d8c76447.