No I never cut or tear it mine also roam in indoor environment it's common for indoor chickens to have these .
These are only a result of walking in hard flooring instead of grass.
The best way to remove is to soak this in lukewarm water with Epsom salt for 20-25 minutes once it's nicely soaked...
It's not Bumblefoot it's happens with mine due to walking on hard floors u can soak it and it will remove like a scaby skin then put some Boroline Ointment and wrap and keep it wrap for a week