ASoC: ti: davinci-i2s: Delete unnecessary assignment

In davinci_i2s_hw_params(), mcbsp_word_length is set twice to
asp_word_length[fmt].

Remove second unnecessary assignment.

Signed-off-by: Bastien Curutchet <[e-mail]>
Acked-by: Peter Ujfalusi <[e-mail]>
Link: https://msgid.link/r/[e-mail]
Signed-off-by: Mark Brown <[e-mail]>

sound/soc/ti/davinci-i2s.c

···
 			return -EINVAL;
 		}
 	}
-	mcbsp_word_length = asp_word_length[fmt];
 
 	switch (master) {
 	case SND_SOC_DAIFMT_BP_FP: