clk: visconti: remove unused visconti_pll_provider::regmap

Field regmap of struct visconti_pll_provider is never used. Remove it.
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>

Link: https://lore.kernel.org/r/20230302205028.2539197-1-dario.binacchi@amarulasolutions.comAcked-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

drivers/clk/visconti/pll.h

@@ -15,7 +15,6 @@
 
 struct visconti_pll_provider {
 	void __iomem *reg_base;
-	struct regmap *regmap;
 	struct clk_hw_onecell_data clk_data;
 	struct device_node *node;
 };