Revert "SSP-1372 Eager-load Challenge associations needed by default TO"

This reverts commit fc5fba97674cb988b0b925bf064a2a6653fc1970.

This optimization just will not work without major changes to the
pagination mechanism.

http://floledermann.blogspot.com/2007/10/solving-hibernate-criterias-distinct.html
SSP-1375 Fix regression which caused page size to be ignored