To remove members from the group:  

1. Navigate to the group page.
2. On the group header, tap Members. The Group Members screen will display.
3. Go to the Members tab and look for the member's profile.  
4. Tap the member's profile 3 dots menu and choose Remove from group.  
5. A pop-up will appear.  Tap the OK button to confirm that you want to remove the person.