Service Portal - Need to hide/remove paper clip attachment of reference field pop-up

Build info: Kingston patch 7

1. Navigate to New Hire Order Guide on platform.
w. Add a new reference type variable with sys_user table.
3. Navigate to New Hire on Service Portal:
https://demonightlykingston.service-now.com/sp?id=sc_cat_item_guide&sys_id=6690750f4f7b4200086eeed18110c761
4. Type "Abel Tuter" in the reference field.
5. Click "i" icon which will open a pop-up window
Notice the attachment paperclip.

6. Navigate to catalog item "Apple iPad 3" on platform.
7. Add a new reference type variable with sys_user table.
8. Navigate to "Apple iPad 3" on Service Portal:
https://demonightlykingston.service-now.com/sp?id=sc_cat_item&sys_id=060f3afa3731300054b6a3549dbe5d3e
9. Type "Abel Tuter" in the reference field.
10. Click "i" icon which will open a pop-up window
Notice the attachment paperclip.

Expected Behavior: paper clip attachment of reference field pop-up can be disabled via system property.

Actial Behavior: paper clip attachment of reference field pop-up is always available.

1. Navigate to Service Portal > Pages.
2. Look for Order Guide page (id=sc_cat_item_guide) OR Catalog Item page (id=sc_cat_item).
3. Add the following CSS code under Page Specific CSS:

.panel-heading span.glyphicon-paperclip { 
display: none; 
} 

4. Save the change.