To delete a comment on a photo from the TeamLinkt App:
Press Photos from the messaging tab
Find the comment you would like to delete
Press & Hold the comment you would like to delete
Press Delete
From the web:
Login at app.teamlinkt.com
Go to Connect > Photos
Go to the picture you commented on
Click the comment icon
Hover over the icon you want to delete
A trash can icon will appear if you have permission to delete the photo
Click the trash icon and confirm