fix prompt input

handler.py

@@ -47,7 +47,6 @@ class EndpointHandler():
         num_inference_steps = params.pop("num_inference_steps", 25)
         guidance_scale = params.pop("guidance_scale", 7.5)
         negative_prompt = params.pop("negative_prompt", None)
-        prompt = params.pop("prompt", None)
         height = params.pop("height", None)
         width = params.pop("width", None)
         manual_seed = params.pop("manual_seed", -1)