[ModelOpt] Remove NVFP4 MoE K%16==0 constraint (vllm-project#26891)

Signed-off-by: XiaobingSuper <[email protected]>

Author: XiaobingSuper

vllm/model_executor/layers/quantization/modelopt.py

@@ -1542,23 +1542,11 @@ def process_weights_after_loading(self, layer: torch.nn.Module) -> None:
             del layer.w2_input_scale_quant
         else:
             # Non-TRT-LLM processing (Cutlass or non-flashinfer)
-            assert layer.w13_weight_scale.shape[2] % 16 == 0, (
-                "Expected weight_scale.dim(1) to be divisible by 16"
-            )
-            assert layer.w13_weight_scale.dtype == torch.float8_e4m3fn, (
-                "Weight Blockscale must be represented as FP8-E4M3"
-            )
             w13_blockscale_swizzled = swizzle_blockscale(layer.w13_weight_scale)
             layer.w13_weight_scale = Parameter(
                 w13_blockscale_swizzled, requires_grad=False
             )
 
-            assert layer.w2_weight_scale.shape[2] % 16 == 0, (
-                "Expected weight_scale.dim(1) to be divisible by 16"
-            )
-            assert layer.w2_weight_scale.dtype == torch.float8_e4m3fn, (
-                "Weight Blockscale must be represented as FP8-E4M3"
-            )
             w2_blockscale_swizzled = swizzle_blockscale(layer.w2_weight_scale)
             layer.w2_weight_scale = Parameter(
                 w2_blockscale_swizzled, requires_grad=False