[bisq-network/bisq] Remove unused uid in pricefeed service (#3937)

[wiz]

pricenode still has UUID in logs
```
INFO  b.p.m.FeeRateController: Incoming /getFees request from: bisq/1.2.7, uid:f33c97d1-b065-48c4-bc84-eaaa680e4288
```

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