remove unused import

swarms/structs/mixture_of_agents.py

@@ -7,7 +7,6 @@ from pydantic import BaseModel, Field
 from swarms.structs.agent import Agent
 from swarms.telemetry.capture_sys_data import log_agent_data
 from swarms.schemas.agent_step_schemas import ManySteps
-from swarms.prompts.ag_prompt import aggregator_system_prompt
 from swarms.utils.loguru_logger import initialize_logger
 
 logger = initialize_logger(log_folder="mixture_of_agents")