Merge bitcoin#21912: doc: Remove mention of priority estimation

fa0ad7b doc: Remove mention of priority estimation (MarcoFalke)

Pull request description:

ACKs for top commit:
  laanwj:
    Documentation review ACK fa0ad7b

Tree-SHA512: 1be856efc0a25c6bec31e6e58879bbccce18f69cc4f180b285a24362b032f1abeaabc55f9bb064c4c30d3217c38b3f96f52bdf80e13c6069c86cdc4d21f57ef3

Author: laanwj

doc/files.md

@@ -65,7 +65,7 @@ Subdirectory       | File(s)               | Description
 `./`               | `governance.dat`      | stores data for governance objects
 `./`               | `mncache.dat`         | stores data for masternode list
 `./`               | `netfulfilled.dat`    | stores data about recently made network requests
-`./`               | `fee_estimates.dat`   | Stores statistics used to estimate minimum transaction fees and priorities required for confirmation
+`./`               | `fee_estimates.dat`   | Stores statistics used to estimate minimum transaction fees required for confirmation
 `./`               | `guisettings.ini.bak` | Backup of former [GUI settings](#gui-settings) after `-resetguisettings` option is used
 `./`               | `ip_asn.map`          | IP addresses to Autonomous System Numbers (ASNs) mapping used for bucketing of the peers; path can be specified with the `-asmap` option
 `./`               | `mempool.dat`         | Dump of the mempool's transactions