No, as was suggested earlier with instructions, use the Roku remote app on an Android or iOS phone or tablet to remove the channel from your Roku account.
Links to official Roku app:
Android: https://play.google.com/store/apps/details?id=com.roku.remote
iOS: https://apps.apple.com/us/app/the-roku-app-official/id482066631
Roku Community Streaming Expert
I am not a Roku employee, only a user like you. Please, no support questions via private message -- post them publicly to the Community where others may benefit as well.
If this post solves your problem please help others find this answer by clicking "Accept as Solution.".
Ultra 4800 | Streaming Stick 4K+ 3821 | TCL Roku TV 43S245/C107X