TestKit: remove temporary feature flags (#1205)

Author: robsdedude

testkit-backend/src/main/java/neo4j/org/testkit/backend/messages/requests/GetFeatures.java

@@ -43,25 +43,15 @@ public class GetFeatures implements TestkitRequest
             "Feature:Bolt:4.4",
             "AuthorizationExpiredTreatment",
             "ConfHint:connection.recv_timeout_seconds",
-            "Temporary:DriverFetchSize",
-            "Temporary:DriverMaxTxRetryTime",
             "Feature:Auth:Bearer",
             "Feature:Auth:Kerberos",
             "Feature:Auth:Custom",
             "Feature:Impersonation",
-            "Temporary:FastFailingDiscovery",
             "Feature:TLS:1.1",
             "Feature:TLS:1.2",
             "Feature:TLS:1.3",
             "Feature:API:SSLSchemes",
             "Feature:API:Liveness.Check",
-            "Temporary:DriverMaxConnectionPoolSize",
-            "Temporary:ConnectionAcquisitionTimeout",
-            "Temporary:GetConnectionPoolMetrics",
-            "Temporary:CypherPathAndRelationship",
-            "Temporary:FullSummary",
-            "Temporary:ResultKeys",
-            "Temporary:TransactionClose",
             "Optimization:EagerTransactionBegin",
             "Feature:API:Driver.IsEncrypted",
             "Feature:API:SSLConfig",