Ok, it appears to be bolted on, so,.....
Unhook the wiring, remove the bolts, lay it down on cardboard or something, 'n secure it snuggly,....
It appears it can ride just forward of the windshield,....
Reach under the gunwale, unplug the tower, unbolt the tower.
Or because the tower is designed to be below DOT limit and the gunwale is beafed up with al aluminum plate in the cap. The boat and tower are structurally secure (as it's a tow tower). Just leave it up