tests: Avoid returning original_avatar_path_id.
tests: Avoid returning original_avatar_path_id.

The way we check for avatars is kind of clumsy for
realms.  Ideally we would just check all users
in the realm.

kou/zulip,rht/zulip,andersk/zulip,andersk/zulip,andersk/zulip,eeshangarg/zulip,rht/zulip,andersk/zulip,zulip/zulip,eeshangarg/zulip,rht/zulip,kou/zulip,rht/zulip,zulip/zulip,andersk/zulip,eeshangarg/zulip,rht/zulip,andersk/zulip,kou/zulip,andersk/zulip,zulip/zulip,kou/zulip,eeshangarg/zulip,kou/zulip,rht/zulip,zulip/zulip,zulip/zulip,kou/zulip,eeshangarg/zulip,eeshangarg/zulip,rht/zulip,eeshangarg/zulip,kou/zulip,zulip/zulip,zulip/zulip