feat(ltx2): remove unused text_encoder_kernel from specs

Author: Perseus14

src/maxdiffusion/models/ltx2/logical_sharding_ltx2.py

@@ -57,7 +57,6 @@ class TextEncoderShardingSpecs:
   """Specs for the Text Encoder execution."""
 
   use_batched_text_encoder: bool = False  # Flag to batch text encoder execution
-  text_encoder_kernel: Optional[tuple] = None  # Spec for text encoder projection layers
 
 
 @dataclass
@@ -103,7 +102,6 @@ class VAEShardingSpecs:
         ),
         "text_encoder": TextEncoderShardingSpecs(
             use_batched_text_encoder=True,
-            text_encoder_kernel=(None, "embed"),
         ),
         "text_connector": TextConnectorShardingSpecs(
             qkv_kernel=(None, "heads"),
@@ -116,7 +114,6 @@ class VAEShardingSpecs:
         "ltx2_dit": LTX2DiTShardingSpecs(),
         "text_encoder": TextEncoderShardingSpecs(
             use_batched_text_encoder=False,
-            text_encoder_kernel=(None, "embed"),
         ),
         "text_connector": TextConnectorShardingSpecs(),
         "vae": VAEShardingSpecs(),