Remove cities with 0 streets

Sometimes when I holiday I capture my walks, and they go into Strava and thus City Strides. However, I don’t want them there, and I always delete the activities. Almost always every trace of the activity disappears, but 2 cities still appear on my list even though I have 0 completed streets (in fact also 0 in progress streets):
Bad Harzburg

Can these be removed?