clk: axi-clkgen: Use managed `of_clk_add_hw_provider()`

Use the managed `devm_of_clk_add_hw_provider()` instead of
`of_clk_add_hw_provider()`. This makes sure the provider gets automatically
removed on unbind and allows to completely eliminate the drivers `remove()`
callback.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Link: https://lore.kernel.org/r/20230410014502.27929-1-lars@metafoo.deSigned-off-by: Stephen Boyd <sboyd@kernel.org>

drivers/clk/clk-axi-clkgen.c

@@ -553,13 +553,8 @@ static int axi_clkgen_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
-	return of_clk_add_hw_provider(pdev->dev.of_node, of_clk_hw_simple_get,
-				      &axi_clkgen->clk_hw);
-}
-
-static void axi_clkgen_remove(struct platform_device *pdev)
-{
-	of_clk_del_provider(pdev->dev.of_node);
+	return devm_of_clk_add_hw_provider(&pdev->dev, of_clk_hw_simple_get,
+					   &axi_clkgen->clk_hw);
 }
 
 static const struct of_device_id axi_clkgen_ids[] = {
@@ -581,7 +576,6 @@ static struct platform_driver axi_clkgen_driver = {
 		.of_match_table = axi_clkgen_ids,
 	},
 	.probe = axi_clkgen_probe,
-	.remove_new = axi_clkgen_remove,
 };
 module_platform_driver(axi_clkgen_driver);