remove unused imports

code/clip/model.py

@@ -237,10 +237,6 @@ class VisualTransformer(nn.Module):
 
         return x
 
-
-from x_transformers.autoregressive_wrapper import AutoregressiveWrapper
-from x_transformers import ViTransformerWrapper, TransformerWrapper, Encoder, Decoder
-
 class CLIP(nn.Module):
     def __init__(self,
                  embed_dim: int,
@@ -503,4 +499,4 @@ def build_model(state_dict: dict, weight_sharing: bool, feature_fusion: str, num
     convert_weights(model)
     #TODO: only do strict=false when loading from state with 'visual2' branch
     model.load_state_dict(state_dict, strict=False)
-    return model.eval()
+    return model.eval()