Hide Delete icon in Goal page from Line Managers

Summary:

Our requirement is to hide the delete icon in Goal Page from Line Managers (My Team -> Direct report's Goal page)

Content (required):

I tried to hide the delete icon (highlighted in the screenshot below) via Page Composer by using this EL Expression: #{pageFlowScope.pParentFlow != 'WORKER_HOME'} in My Team -> Direct report's goal page. However, it seems to affect the Goal page in Me -> Goals - which should not be the case. It must only be removed from the Line Manager's view in My Team Goals.

The EL expression has worked for the other object that I customized a while ago. But it doesn't seem to work for this case. Is there another way to make this work?