rockchip: clk: rk3399: remove unused fields from priv-structures

This removes the unused 'rate' field from both rk3399_pmuclk_priv and
rk3399_clk_priv. I didn't bother to check where this came from (i.e.
what the historical context of these was), but only verified that
these are indeed unused across all code-paths.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

arch/arm/include/asm/arch-rockchip/cru_rk3399.h

@@ -12,12 +12,10 @@
 /* Private data for the clock driver - used by rockchip_get_cru() */
 struct rk3399_clk_priv {
 	struct rk3399_cru *cru;
-	ulong rate;
 };
 
 struct rk3399_pmuclk_priv {
 	struct rk3399_pmucru *pmucru;
-	ulong rate;
 };
 
 struct rk3399_pmucru {