ASoC: Intel: Skylake: sst-utils: remove redundant assignment

Fix cppcheck warning:

sound/soc/intel/skylake/skl-sst-utils.c:240:10: style: Variable 'ret'
is assigned a value that is never used. [unreadVariable]
 int ret = 0;
         ^
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200813200147.61990-19-pierre-louis.bossart@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/intel/skylake/skl-sst-utils.c

@@ -237,7 +237,7 @@ int snd_skl_parse_uuids(struct sst_dsp *ctx, const struct firmware *fw,
 	struct uuid_module *module;
 	struct firmware stripped_fw;
 	unsigned int safe_file;
-	int ret = 0;
+	int ret;
 
 	/* Get the FW pointer to derive ADSP header */
 	stripped_fw.data = fw->data;