testutils: do not require CCL import or enterprise license to test with secondary tenants #108761
Description
(Discussed with @yuzefovich)
Prior to this patch, for test tenant servers to be automatically used two conditions needed to hold:
- the CCL package(s) needed to be imported.
- an enterprise license needed to be set (usually via
ccl.TestingEnableEnterprise())
While we want these conditions to hold to start separate-process SQL servers in production, they do not need to be verified in unit tests. Also ever since #98203 was merged, the CCL import is not necessary at all.
Epic: CRDB-18499
Jira issue: CRDB-30626