Since I used Arduino Uno as ISP, I did not find a way to "untick" it in >TOOLS>Programming
There is no way to "untick" the Tools > Programmer menu selection. There will always be one programmer selected. You can chose a different programmer if necessary. The Tools > Programmer menu selection is only used if you do a Tools > Burn Bootloader or a Sketch > Upload using Programmer. For any other operation that menu selection is completely ignored and so it doesn't matter what you have selected.