[修复]1. 修复函数调用写错的问题

GameFrameX.Launcher/Common/Session/SessionManager.cs

@@ -53,7 +53,7 @@ public static void KickOffLineByUserId(long roleId)
         /// <param name="sessionId">链接ID</param>
         public static Session Get(string sessionId)
         {
-            SessionMap.TryRemove(sessionId, out var value);
+            SessionMap.TryGetValue(sessionId, out var value);
             return value;
         }