hotfix to remove duplicate key in INITIAL_MODELS

Author: Lincoln Stein

invokeai/configs/INITIAL_MODELS.yaml

@@ -20,10 +20,6 @@ sdxl/main/stable-diffusion-xl-base-1-0:
    description: Stable Diffusion XL base model (12 GB)
    repo_id: stabilityai/stable-diffusion-xl-base-1.0
    recommended: False
-sdxl-refiner/main/stable-diffusion-xl-refiner-1-0:
-   description: Stable Diffusion XL refiner model (12 GB)
-   repo_id: stabilityai/stable-diffusion-xl-refiner-1.0
-   recommended: False
 sdxl-refiner/main/stable-diffusion-xl-refiner-1-0:
    description: Stable Diffusion XL refiner model (12 GB)
    repo_id: stabilityai/stable-diffusion-xl-refiner-1.0