ref(replay): Remove unused _triggerFullSnapshot (#9393)

This is not used since we reworked our session refresh flow to just
start>stop.

Author: mydea

packages/replay/src/replay.ts

@@ -941,19 +941,6 @@ export class ReplayContainer implements ReplayContainerInterface {
     }
   }
 
-  /**
-   * Trigger rrweb to take a full snapshot which will cause this plugin to
-   * create a new Replay event.
-   */
-  private _triggerFullSnapshot(checkout = true): void {
-    try {
-      logInfo('[Replay] Taking full rrweb snapshot');
-      record.takeFullSnapshot(checkout);
-    } catch (err) {
-      this._handleException(err);
-    }
-  }
-
   /**
    * Update user activity (across session lifespans)
    */