ASoC: jz4740: Remove unused match variable

After commit 67ad656b ("ASoC: jz4740: Use
of_device_get_match_data()"), the match local variable is unused and the
compiler rightly warns.

sound/soc/jz4740/jz4740-i2s.c: In function 'jz4740_i2s_dev_probe':
sound/soc/jz4740/jz4740-i2s.c:500:29: warning: unused variable 'match' [-Wunused-variable]
  500 |  const struct of_device_id *match;

Drop it.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Paul Cercueil <paul@crapouillou.net>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Frank Rowand <frowand.list@gmail.com>
Cc: <alsa-devel@alsa-project.org>
Fixes: 67ad656b ("ASoC: jz4740: Use of_device_get_match_data()")
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20191008235212.228856-1-swboyd@chromium.orgSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/jz4740/jz4740-i2s.c

@@ -497,7 +497,6 @@ static int jz4740_i2s_dev_probe(struct platform_device *pdev)
 	struct jz4740_i2s *i2s;
 	struct resource *mem;
 	int ret;
-	const struct of_device_id *match;
 
 	i2s = devm_kzalloc(&pdev->dev, sizeof(*i2s), GFP_KERNEL);
 	if (!i2s)