Remove or Edit Contacts In Gmail
Contacts saved to your Google Account will sync with Google Contacts.
Edit a contact
Go to Google Contacts.
Click a contact's name.
In the top right corner, click Edit Edit.
Edit the information.
Click Save.
Delete a contact
Go to Google Contacts.
To select contacts, check the boxes that appear next to their names.
To delete multiple contacts at a time, check all the contacts you want to delete.
In the top right, click More More and then Delete and then Delete.