Hello @TheKatherine 

Assuming that you are looking at a specific CIs related list "Change Requests" which is showing two filters by default as shown below:

Here is the solution to remove active is true filter condition:

Update Set Application Scope: CMDB Page Templates
Navigate to All > System UI > Related Lists (Table: sys_ui_related_list).
Apply the filter as shown below:

NOTE: The table name in my filter condition is based upon what I was viewing in the CMDB Workspace (you can get it from the URL)

Open change_request.cmdb_ci the first entry under Related List Entries and remove Active is true filter condition and update:

Reload the webpage, click Change Requests related list and then filter icon will show 1 or click on it and it will not have active is true filter condition anymore: