ARM: imx6q: remove unneeded clkdev lookups

There are a number of clkdev lookups left over from commit b0286f20
(ARM: imx6q: prepare and enable init on clks directly instead of
clk_get first), remove them since they are not needed now.
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>

arch/arm/mach-imx/clk-imx6q.c

@@ -388,12 +388,9 @@ int __init mx6q_clocks_init(void)
 			pr_err("i.MX6q clk %d: register failed with %ld\n",
 				i, PTR_ERR(clk[i]));
 
-	clk_register_clkdev(clk[mmdc_ch0_axi], NULL, "mmdc_ch0_axi");
-	clk_register_clkdev(clk[mmdc_ch1_axi], NULL, "mmdc_ch1_axi");
 	clk_register_clkdev(clk[gpt_ipg], "ipg", "imx-gpt.0");
 	clk_register_clkdev(clk[gpt_ipg_per], "per", "imx-gpt.0");
 	clk_register_clkdev(clk[twd], NULL, "smp_twd");
-	clk_register_clkdev(clk[usboh3], NULL, "usboh3");
 	clk_register_clkdev(clk[uart_serial], "per", "2020000.serial");
 	clk_register_clkdev(clk[uart_ipg], "ipg", "2020000.serial");
 	clk_register_clkdev(clk[uart_serial], "per", "21e8000.serial");