Temp rollback PR#8718 so we can add tests.

Author: DellaBitta

.changeset/chilled-clocks-remember.md

@@ -797,10 +797,8 @@ export class PersistentConnection extends ServerActions {
         this.lastConnectionEstablishedTime_ = null;
       }
 
-      const timeSinceLastConnectAttempt = Math.max(
-        0,
-        new Date().getTime() - this.lastConnectionAttemptTime_
-      );
+      const timeSinceLastConnectAttempt =
+        new Date().getTime() - this.lastConnectionAttemptTime_;
       let reconnectDelay = Math.max(
         0,
         this.reconnectDelay_ - timeSinceLastConnectAttempt