Strict sql_mode settings are very application specific, many will simply
not work with them. This setting was likely inherited from some other
production MySQL config file and is not appropriate for a generic
configuration. Specifically, this broke the MySQL package maintainer
scripts.
Change-Id: I068fcc7b3c770541d3d1ecfb372384750f182584
We didn't need to do most of this anyway, we just needed to configure
mysql before we installed the packages in the image. Some of the other
things were half-baked ideas which will come in later changes to add
os-refresh-config and os-config-applier support to the element.
Change-Id: Ib1b66a8b3b70fac10f3f826b1efd414c67f9bfc6