CDN snapshot diff always has a diff with tm_path

[mitchell852]

When performing a snapshot diff in Traffic Portal, the tm_path value under the Stats tab is always different

This is because the "old" tm_path always includes the endpoint that was used to perform the current snapshot:

/tools/write_crconfig/cdn1 (if snapshot was performed thru old TO UI)
or
/api/1.3/cdns/:id/snapshot (if snapshot was performed thru the API (or TP))

and the "new" tm_path always includes the path used to fetch the "new" snapshot:

/api/1.3/cdns/cdn1/snapshot/new

hence, always a diff.

my suggestion is that tm_path is removed altogether as it appears to not be used anywhere and is purely informational.

https://github.com/apache/incubator-trafficcontrol/blob/master/traffic_ops/app/lib/UI/Topology.pm#L64

[mitchell852]

not sure why this was closed. reopening.