clk: Remove __clk_register

As it has never been used.

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Michael Turquette <mturquette@linaro.org>

diff --cc drivers/clk/clk.c
Simple merge

diff --cc include/linux/clk-private.h
Simple merge