Revert "SONAR-5605 MySQL: configure driver to use server side cursor and not client side cursor"

This reverts commit ccf4726ae0530695bd55903a989bbd6afae1dd5c.
Merge remote-tracking branch 'origin/branch-4.5'

Conflicts:
	sonar-application/src/test/java/org/sonar/application/JdbcSettingsTest.java