Fix typos. (#5796)

* Update _register_onnx_ops.py

* Update misc.py

torchvision/ops/_register_onnx_ops.py

@@ -38,7 +38,7 @@ def _register_custom_op():
         # ONNX doesn't support negative sampling_ratio
         if sampling_ratio < 0:
             warnings.warn(
-                "ONNX doesn't support negative sampling ratio, therefore is is set to 0 in order to be exported."
+                "ONNX doesn't support negative sampling ratio, therefore is set to 0 in order to be exported."
             )
             sampling_ratio = 0
         return g.op(

torchvision/ops/misc.py

@@ -219,7 +219,7 @@ class Conv3dNormActivation(ConvNormActivation):
 class SqueezeExcitation(torch.nn.Module):
     """
     This block implements the Squeeze-and-Excitation block from https://arxiv.org/abs/1709.01507 (see Fig. 1).
-    Parameters ``activation``, and ``scale_activation`` correspond to ``delta`` and ``sigma`` in in eq. 3.
+    Parameters ``activation``, and ``scale_activation`` correspond to ``delta`` and ``sigma`` in eq. 3.
 
     Args:
         input_channels (int): Number of channels in the input image