Hey there, hi there, Andrea! Welcome to planDisney. We are so glad you stopped by with your question for us. We love helping Guests plan and get all the information they need to try to have the most magical time on their visit.
While it sounds like you've visited before, I hope you are also planning your next visit. If you have passes or tickets for other Guests that you no longer want linked to your MyDisney account or in your 
Disneyland app, there is no option to delete or unlink these yourself.  You will need to reach out to 
Guest Services by calling in or chatting with a Cast Member through the Disneyland website or app. They can help you remove the tickets and passes on their end for you. 
If you are planning your next visit, the rest of the year is jam-packed with excitement and magic! The 
70th Celebration has been in full swing for the last few months and will continue into Halloween Time and beyond. Then you have 
Halloween Time and 
Holidays taking us to the end of the year. I have a feeling I will be making plenty of visits these next few months to be able to experience it all!
Andrea, thanks so much for stopping by! We hope to see you real soon!
Carrie