[Chore] remove all is from auraflow. (#8980)

remove all is from auraflow.

src/diffusers/models/transformers/auraflow_transformer_2d.py

@@ -138,14 +138,14 @@ class AuraFlowSingleTransformerBlock(nn.Module):
         self.norm2 = FP32LayerNorm(dim, elementwise_affine=False, bias=False)
         self.ff = AuraFlowFeedForward(dim, dim * 4)
 
-    def forward(self, hidden_states: torch.FloatTensor, temb: torch.FloatTensor, i=9999):
+    def forward(self, hidden_states: torch.FloatTensor, temb: torch.FloatTensor):
         residual = hidden_states
 
         # Norm + Projection.
         norm_hidden_states, gate_msa, shift_mlp, scale_mlp, gate_mlp = self.norm1(hidden_states, emb=temb)
 
         # Attention.
-        attn_output = self.attn(hidden_states=norm_hidden_states, i=i)
+        attn_output = self.attn(hidden_states=norm_hidden_states)
 
         # Process attention outputs for the `hidden_states`.
         hidden_states = self.norm2(residual + gate_msa.unsqueeze(1) * attn_output)
@@ -201,7 +201,7 @@ class AuraFlowJointTransformerBlock(nn.Module):
         self.ff_context = AuraFlowFeedForward(dim, dim * 4)
 
     def forward(
-        self, hidden_states: torch.FloatTensor, encoder_hidden_states: torch.FloatTensor, temb: torch.FloatTensor, i=0
+        self, hidden_states: torch.FloatTensor, encoder_hidden_states: torch.FloatTensor, temb: torch.FloatTensor
     ):
         residual = hidden_states
         residual_context = encoder_hidden_states
@@ -214,7 +214,7 @@ class AuraFlowJointTransformerBlock(nn.Module):
 
         # Attention.
         attn_output, context_attn_output = self.attn(
-            hidden_states=norm_hidden_states, encoder_hidden_states=norm_encoder_hidden_states, i=i
+            hidden_states=norm_hidden_states, encoder_hidden_states=norm_encoder_hidden_states
         )
 
         # Process attention outputs for the `hidden_states`.
@@ -366,7 +366,7 @@ class AuraFlowTransformer2DModel(ModelMixin, ConfigMixin):
 
             else:
                 encoder_hidden_states, hidden_states = block(
-                    hidden_states=hidden_states, encoder_hidden_states=encoder_hidden_states, temb=temb, i=index_block
+                    hidden_states=hidden_states, encoder_hidden_states=encoder_hidden_states, temb=temb
                 )
 
         # Single DiT blocks that combine the `hidden_states` (image) and `encoder_hidden_states` (text)