EZP-21779: Removed duplicate table creation

The SQL files for the eZ Find Test Suite are already imported in the `setUp()` method of the eZ Find Test Suite, but get re-imported in the eZFindElevateConfigurationTest class. This causes an SQL error because the table already exists at this point.

https://jira.ez.no/browse/EZP-21779

Cheers
:octocat: Jérôme