Probably better to do so, removing the entire part, and replace the post with a piece of brass rod, wire, or plastic rod / stretched sprue.
Note that when VHF radios replaced the earlier TR9 series, the small triangular tab on the main antenna mast was removed, along with the antenna wire and the rudder post. The two small screw attachment points were still present on the mast, where the tab had been.
Check your references for the actual aircraft and date being depicted to verify the fitting of which radio.
The VHF sets began to be fitted around late August / early September 1940, but some Sqns still had the TR9 much later.