phy: rockchip: remove unused hw_to_inno function

clang with W=1 reports
drivers/phy/rockchip/phy-rockchip-inno-dsidphy.c:284:36: error:
  unused function 'hw_to_inno' [-Werror,-Wunused-function]
static inline struct inno_dsidphy *hw_to_inno(struct clk_hw *hw)
                                   ^
This function is not used so remove it.

Signed-off-by: Tom Rix <trix@redhat.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Link: https://lore.kernel.org/r/20230324132649.2649166-1-trix@redhat.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

Author: Tom Rix

drivers/phy/rockchip/phy-rockchip-inno-dsidphy.c

@@ -281,11 +281,6 @@ struct inno_mipi_dphy_timing inno_mipi_dphy_timing_table_max_2_5ghz[] = {
 	{2500000000, 0x15, 0x54, 0x7f, 0x15, 0x6a},
 };
 
-static inline struct inno_dsidphy *hw_to_inno(struct clk_hw *hw)
-{
-	return container_of(hw, struct inno_dsidphy, pll.hw);
-}
-
 static void phy_update_bits(struct inno_dsidphy *inno,
 			    u8 first, u8 second, u8 mask, u8 val)
 {