ephy-location-entry: Unset dazzle suggestion on entry activation

Fixes: GNOME/epiphany#641
3 jobs from fix-loading-wrong-url in 3 minutes (queued for 1 second)
latest
Status Job ID Name Coverage
  Test
passed #241981
flatpak

00:02:22

 
  Deploy
passed #241982
review

00:00:37

manual #241983
allowed to fail manual
stop_review