Remove advertised bandwidth fraction graph from Globe
The advertised bandwidth fraction graph is going to be removed from Onionoo as part of #13674 (moved). We should replace it with the middle probability graph. Will attach a patch in a second.
Setting priority to major, because I'm holding back #13674 (moved) until this patch is merged, so that Globe doesn't look broken. (It's an optional field in Onionoo, so Globe should not rely on it.)
Thanks in advance!