clk: qcom: clk-rpm: Remove a bunch of superfluous code

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

 drivers/clk/qcom/clk-rpm.c:453:29: warning: ‘clk_rpm_branch_ops’ defined but not used [-Wunused-const-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/20210126124540.3320214-19-lee.jones@linaro.org


Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>