clk: zynq: Remove unnecessary OOM message

As checkpatch suggests:
  WARNING: Possible unnecessary 'out of memory' message,
remove an error message after failing kmalloc() from the PLL driver.

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
diff --git a/drivers/clk/zynq/pll.c b/drivers/clk/zynq/pll.c
index cec9759..00d72fb 100644
--- a/drivers/clk/zynq/pll.c
+++ b/drivers/clk/zynq/pll.c
@@ -211,10 +211,8 @@
 	};
 
 	pll = kmalloc(sizeof(*pll), GFP_KERNEL);
-	if (!pll) {
-		pr_err("%s: Could not allocate Zynq PLL clk.\n", __func__);
+	if (!pll)
 		return ERR_PTR(-ENOMEM);
-	}
 
 	/* Populate the struct */
 	pll->hw.init = &initd;