Clean up the following warnings, as the variables are no longer used.
drivers/hwtracing/coresight/coresight-cti-core.c:93:17: warning: unused variable 'dev' [-Wunused-variable]
struct device *dev = &drvdata->csdev->dev;
^
drivers/hwtracing/coresight/coresight-cti-core.c:154:17: warning: unused variable 'dev' [-Wunused-variable]
struct device *dev = &drvdata->csdev->dev;
^
2 warnings generated.
Fixes: 665c157e0204 ("coresight: cti: Fix hang in cti_disable_hw()")
Signed-off-by: Nathan Chancellor <nathan@xxxxxxxxxx>