Looks like a Fennec build option was changed and that stuff was mistakenly
included in Tor Browser. Tor Browser ultimately is a build flavor of Firefox,
and Firefox includes Play Services and some tracking services. In the future,
file an issue with Tor if you see this.
FYI I’m familiar with how ClassyShark3xodus, Exodus, etc. work since I’m a
contributor to Exodus. When reviewing results, it is important to remember that
they check “code signatures”, e.g. is there a class that has a specific name.
They do not check whether the actual class is from a known tracker library. So
if an app has its own wrapper class with the same package name, then checking by
code signature will mark it as having a tracker library even though the actual
tracker library is not present, only the custom wrapper class. The example
class you posted seems to be a case of that. But since the app has 680 classes
matching, it seems unlikely those are all wrappers.
If you want to see something that actually checks classes, look at LibScout.