VM generally will not remove redundant cabling, when people have asked in past topics on here, unless it poses a H&S risk of some kind. In the past VM has responded here that you can remove it yourself.
A convenient point to remove cabling is the omnibox outside where you can detach indoor cabling from outdoor cabling (your white box outside).
If you have any intention of possibly using VM in the future, then you should leave the white omnibox on the wall outside and the black incoming cable in place. You would fit an adapter to the end of the black coax cable like this sort of thing
https://www.diy.com/departments/slx-coaxial-connector-19mm/5028422001905_BQ.prd
onto which you can fit a terminator cap to terminate the unused cable
https://www.ebay.co.uk/itm/255046119498
the above links are just examples only. They are generic parts and you can find best/better prices from a supplier of your choosing.
A couple of reasons to keep the omnibox and external cabling in place are that cable installations is an area where VM is very poor in organising and managing the work (long delays can sometimes arise to get a cable fitted). If you cut the external cable yourself, VM would need to either renew or join the cut cable to reconnect you in the future. This can sometimes result in VM deeming your property unserviceable. Cutting the external cabling, without terminating, can cause issues for other VM users in the neighbourhood.
VM has stated on here that you can cut/remove the external cabling but doing so comes with the risks above. If you leave the external omnibox and external cabling in place you do have the most straightforward path to get VM as a future option should you ever require it. IMHO it is always good to leave future connection options in place (even if you think you are unlikely to use VM at this exact moment in time).
Edit: There is actually an adapter/coupler already screwed into the end of the white coax cable in photo #3 so you could undo and remove that, refit it to the black incoming coax cable and then fit a terminator cap to the end of the incoming cable.