Remove old test to validate that incr cannot have cas
Remove old test to validate that incr cannot have cas

This is tested in the validator test suite

Change-Id: I32c1f7a6e09be73279825a12cda341ece3fcd42e
Reviewed-on: http://review.couchbase.org/102644
Tested-by: Build Bot <80754af91bfb6d1073585b046fe0a474ce868509@couchbase.com>
Reviewed-by: Daniel Owen <b3fc0e1a51f252986e60be7da121b74d3ac6845f@couchbase.com>

daverigby/kv_engine,daverigby/kv_engine,daverigby/kv_engine,daverigby/kv_engine