Remove perf tests db connections settings.

No db used even last time these were published

Change-Id: I0d0497d6a407f07cb3673719a94585484ea5a6d2
Reviewed-on: https://git.eclipse.org/r/c/platform/eclipse.platform.releng.buildtools/+/190478
Tested-by: Platform Bot <platform-bot@eclipse.org>
Reviewed-by: Alexander Kurtakov <akurtako@redhat.com>
2 files changed