Non viewable likers are not correctly displayed

XWIKI-16544 was supposed to handle it, but did not change much to the logic of the display code in practice.

Reproduction steps

1. Have 2 users U1 and U2 like a page X
2. With an admin, disable the view right of U1 by U2
3. With user U2 visit the list of likers of page X (e.g., http://localhost:8080/xwiki/bin/view/Main/?viewer=likers)

Expected

Only U2 is listed, and U1 is filtered out.

Actual

An entry is displayed for U1 with a bad display (so it does not leak undesired information).