ultralytics 8.3.39 fix classification validation loss scaling (#17851)

Co-authored-by: Glenn Jocher <glenn.jocher@ultralytics.com>

ultralytics/nn/modules/head.py

@@ -296,7 +296,7 @@ class Classify(nn.Module):
         if isinstance(x, list):
             x = torch.cat(x, 1)
         x = self.linear(self.drop(self.pool(self.conv(x)).flatten(1)))
-        return x if self.training else x.softmax(1)
+        return x
 
 
 class WorldDetect(Detect):