Change default data collected by Firebase/Google analytics

We use Firebase/Google analytics in our android app. Each event is saved with a lot of extra information (user-id, device-info, timestamps, user-properties, geographical location …). The extra info is there by default but we don’t want it to be collected.

We tried 2 things:

1) Update Big Query Schema

Delete the unwanted columns from Big Query. Unfortunately, Big Query creates a new export every day. So we would need to know where those fields are coming from. Something we don't know.

2) DefaultParameters within the app

Tried to use default parameters from inside the app, so the city will always be null. Here is an example with the user’s city

Bundle defaultValues = new Bundle();
defaultValues.putString("geo.city", null);
FirebaseAnalytics.getInstance(ctx).setDefaultEventParameters(defaultValues);

Unfortunately, we still see geo.city in our BigQuery data filled in.

Is there a way of changing what is collected by default?

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