Disable prefix based sharding cluster suites

Disable prefix based sharding cluster suites

The below comment block is also in the testplan file:

/ disabling all "prefix based" suites. This functionality was newly
/ introduced with these tests in 2017. The assumption is that
/ development stopped in that area, but may continue at a later
/ time. Still, the tests are failing and no resources to solve the
/ failures at this time. If/When this changes, we can uncomment
/ those suites. Note that every suite is commented out with it's
/ accompanying "restart_with_tell_based_true" setup suite.

Change-Id: If624bc303d1d12625c0f7f79f9590bc29caccaf2
Signed-off-by: Jamo Luhrsen <jluhrsen@redhat.com>