i2c: qcom-cci: Remove the unused variable cci_clk_rate

i2c: qcom-cci: Remove the unused variable cci_clk_rate

Variable cci_clk_rate is not effectively used, so delete it.

drivers/i2c/busses/i2c-qcom-cci.c:526:16: warning: variable ‘cci_clk_rate’ set but not used.

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=11532
Fixes: 8284750a1829 ("i2c: qcom-cci: Stop complaining about DT set clock rate")
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>