You can hide the camera icons in the route planner at any time by toggling the "Symbols" switch at the bottom of the map.
I note when I load a route with photo's - edit mode - the camera icons are not showing on the route.
If I then click the photo's option they show - great
However when I turn the photo's pane off the camera pics remain on the map
Either there should be a turn on / off option or they should show when the map is loaded into edit mode,