clk: qcom: gcc-ipq4019: Remove unused variable 'ret'

clk: qcom: gcc-ipq4019: Remove unused variable 'ret'

Fixes the following W=1 kernel build warning(s):

 drivers/clk/qcom/gcc-ipq4019.c: In function ‘clk_cpu_div_set_rate’:
 drivers/clk/qcom/gcc-ipq4019.c:1279:6: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable]

Cc: Andy Gross <agross@kernel.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: linux-arm-msm@vger.kernel.org
Cc: linux-clk@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20210126124540.3320214-14-lee.jones@linaro.org
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>