Removing someone from a messenger can be a little bit typical but it is not impossible. You can do it by the following methods:
1. Launch Messenger on your phone and log into your account.
2. Then, you will see many icons at the bottom of the screen. You need to click on the "People" icon.
3. Now, there is an icon for "Contacts" in the corner of the screen.
4. There is a list of your synced contacts there. Click on the person you want to block, then click the "Block" button.
Source

Thanks for everyone's interesting and useful sharing, mapquest driving directions will visit often to find the necessary information.