clk: __clk_core_init() never takes NULL

The only caller of __clk_core_init() allocates the pointer and checks
the allocation for NULL so this check is impossible. Remove it.
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20211208041534.3928718-2-sboyd@kernel.org

drivers/clk/clk.c

@@ -3414,9 +3414,6 @@ static int __clk_core_init(struct clk_core *core)
 	unsigned long rate;
 	int phase;
 
-	if (!core)
-		return -EINVAL;
-
 	clk_prepare_lock();
 
 	ret = clk_pm_runtime_get(core);