remove AutocastLinear from SD3's MLP

modules/models/sd3/other_impls.py

@@ -39,9 +39,9 @@ class Mlp(nn.Module):
         out_features = out_features or in_features
         hidden_features = hidden_features or in_features
 
-        self.fc1 = AutocastLinear(in_features, hidden_features, bias=bias, dtype=dtype, device=device)
+        self.fc1 = nn.Linear(in_features, hidden_features, bias=bias, dtype=dtype, device=device)
         self.act = act_layer
-        self.fc2 = AutocastLinear(hidden_features, out_features, bias=bias, dtype=dtype, device=device)
+        self.fc2 = nn.Linear(hidden_features, out_features, bias=bias, dtype=dtype, device=device)
 
     def forward(self, x):
         x = self.fc1(x)