clk: fixed: Remove Allwinner A10 special-case logic

This compatible is part of the legacy sunxi clock support, and has not
been used since commit 6b48644b1d29 ("ARM: gr8: Convert to CCU") in
October 2016. Since supporting this compatible adds some overhead to
generic clock code, let's clean it up.

Signed-off-by: Samuel Holland <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Stephen Boyd <[e-mail]>

drivers/clk/clk-fixed-factor.c

···
 EXPORT_SYMBOL_GPL(devm_clk_hw_register_fixed_factor);
 
 #ifdef CONFIG_OF
-static const struct of_device_id set_rate_parent_matches[] = {
-	{ .compatible = "allwinner,sun4i-a10-pll3-2x-clk" },
-	{ /* Sentinel */ },
-};
-
 static struct clk_hw *_of_fixed_factor_clk_setup(struct device_node *node)
 {
 	struct clk_hw *hw;
 	const char *clk_name = node->name;
-	unsigned long flags = 0;
 	u32 div, mult;
 	int ret;
 
···
 
 	of_property_read_string(node, "clock-output-names", &clk_name);
 
-	if (of_match_node(set_rate_parent_matches, node))
-		flags |= CLK_SET_RATE_PARENT;
-
 	hw = __clk_hw_register_fixed_factor(NULL, node, clk_name, NULL, 0,
-					    flags, mult, div, false);
+					    0, mult, div, false);
 	if (IS_ERR(hw)) {
 		/*
 		 * Clear OF_POPULATED flag so that clock registration can be