clk: renesas: rcar-gen3: Remove unused variable

This variable is no longer used and the compiler rightly complains that
it should be removed. Drop it to silence the following:

drivers/clk/renesas/rcar-gen3-cpg.c: In function 'cpg_sd_clk_register':
drivers/clk/renesas/rcar-gen3-cpg.c:386:15: warning: unused variable 'i' [-Wunused-variable]
  unsigned int i;

Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Fixes: b953eaa ("clk: renesas: rcar-gen3: Fix cpg_sd_clock_round_rate() return value")
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

drivers/clk/renesas/rcar-gen3-cpg.c

@@ -383,7 +383,6 @@ static struct clk * __init cpg_sd_clk_register(const char *name,
 	struct clk_init_data init;
 	struct sd_clock *clock;
 	struct clk *clk;
-	unsigned int i;
 	u32 val;
 
 	clock = kzalloc(sizeof(*clock), GFP_KERNEL);