Fix: incorrect st40p tx pipeline zero-size guard

Fix failing TX submissions whenever the ancillary framebuffer still reported data_size == 0, even though the actual payload length already lives in frame_info->udw_buffer_fill. Drop that guard.

Fixes: dd61100

Author: moleksy

lib/src/st2110/experimental/st40_pipeline_tx.c

@@ -428,13 +428,6 @@ int st40p_tx_put_frame(st40p_tx_handle handle, struct st40_frame_info* frame_inf
     return -EIO;
   }
 
-  if (!framebuff->anc_frame->data_size && frame_info->meta_num)
-    framebuff->anc_frame->data_size = frame_info->udw_buffer_fill;
-
-  if (!framebuff->anc_frame->data_size) {
-    err("%s(%d), frame %u data size is 0\n", __func__, idx, producer_idx);
-    return -EIO;
-  }
 
   framebuff->anc_frame->meta_num = frame_info->meta_num;
   framebuff->anc_frame->data_size = frame_info->udw_buffer_fill;