Yes, it can be desoldered.
But it would be much much easier and no chance to destroy anything if you just used the composite output (from the yellow RCA-connector next to the RF output) instead or bought an Amiga RGB scart cable.
Both of those will also give better image quality than you get by using the rf, especially the RGB scart.
Most TVs accept atleast composite input, either via a dedicated connector and/or via the scart connector.
/Patrik
