chore: remove already inherited method

modeling_seamless_m4t_v2_speech_encoder.py

@@ -24,14 +24,6 @@ class SeamlessM4Tv2SpeechEncoder(SeamlessM4Tv2SpeechEncoder):
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
 
-    def _compute_sub_sample_lengths_from_attention_mask(self, attention_mask):
-        pad = self.kernel_size // 2
-        seq_lens = attention_mask.size(1) - (1 - attention_mask.int()).sum(1)
-
-        seq_lens = ((seq_lens + 2 * pad - self.kernel_size) / self.stride) + 1
-
-        return seq_lens.floor()
-
     @staticmethod
     def mean_pooling(
         hidden_states: torch.Tensor, attention_mask: torch.Tensor