Revert "add to_eval and cached parts of prompt"

This reverts commit 94e2826.

Author: amakropoulos

Runtime/LLMInterface.cs

@@ -128,7 +128,5 @@ public struct ServerStatus
         public string message;
         public string hostname;
         public int port;
-        public string to_eval;
-        public string cached;
     }
 }