In Windows Explorer, I right clicked on a file, then clicked on Share in order to try out the new Nearby Share feature (which is pretty cool). This is the first time I used the Share feature in Windows Explorer, and I saw some contact icons at the top of the share window used for sharing the file by email (there is also a "more people" option for accessing your other contacts).

My question is, how do I remove one or more of the contact icons that appear at the top of the share window?