test: add functional test for ScanAndUnlinkAlreadyPrunedFiles

test/functional/test_runner.py

@@ -337,6 +337,7 @@ BASE_SCRIPTS = [
     'p2p_permissions.py',
     'feature_blocksdir.py',
     'wallet_startup.py',
+    'feature_remove_pruned_files_on_startup.py',
     'p2p_i2p_ports.py',
     'p2p_i2p_sessions.py',
     'feature_config_args.py',