The variable stream is initialized but never used
otherwise, so remove the unused variable.
dpatch engine is used to auto generate this patch.
(https://github.com/weiyj/dpatch)
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
 {
        u32 wallclk;
        unsigned int pos;
-       int stream;
 
        wallclk = azx_readl(chip, WALLCLK) - azx_dev->start_wallclk;
        if (wallclk < (azx_dev->period_wallclk * 2) / 3)
                return -1;      /* bogus (too early) interrupt */
 
-       stream = azx_dev->substream->stream;
        pos = azx_get_position(chip, azx_dev, true);
 
        if (WARN_ONCE(!azx_dev->period_bytes,