Update app.py

app.py

@@ -48,13 +48,10 @@ models = [
      Model("TrinArt v2", "naclbit/trinart_stable_diffusion_v2"),
      Model("Spider-Verse", "nitrosocke/spider-verse-diffusion", "spiderverse style "),
      Model("Robo Diffusion", "nousr/robo-diffusion"),
+     Model("U Pron", "stablediffusionapi/urpm", "pron""),
      Model("Epic Diffusion", "johnslegers/epic-diffusion")
   ]
 
-custom_model = None
-if is_colab:
-  models.insert(0, Model("Custom model"))
-  custom_model = models[0]
 
 last_mode = "txt2img"
 current_model = models[1] if is_colab else models[0]