Description of problem:

After upgrade Red Hat OpenShift Logging from 5.6 to 5.7, it appends below line in collection section of clusterlogging instance automatically.

=====
type: vector <<< === New Line Appended
=======

Version-Release number of selected component (if applicable):

Red Hat OpenShift Logging 5.7

How reproducible:

100%

Steps to Reproduce:

1. Install RHOL 5.6 (use fluentd for collection)
2. Create clusterlogging instance CR
3. Update to RHOL 5.7
4. Check YAML of clusterlogging instance

Actual results:

Update to RHOL 5.7 appends "type: vector" line in collection section of clusterlogging instance CR

Expected results:

Update to RHOL 5.7 should not append "type: vector" in clusterlogging instance CR

Additional info:

As per the documentation, RHOL 5.7 supports vector and fluentd both.
[-] https://docs.openshift.com/container-platform/4.12/logging/v5_7/logging-5-7-getting-started.html