ARM: uniphier: remove unnecessary EHCI reset deassertion

It is now deasserted by the reset controller driver.  Drop the
ad-hoc code.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/arch/arm/mach-uniphier/clk/clk-ld4.c b/arch/arm/mach-uniphier/clk/clk-ld4.c
index 8744d26..62b6927 100644
--- a/arch/arm/mach-uniphier/clk/clk-ld4.c
+++ b/arch/arm/mach-uniphier/clk/clk-ld4.c
@@ -1,5 +1,7 @@
 /*
- * Copyright (C) 2011-2015 Masahiro Yamada <yamada.masahiro@socionext.com>
+ * Copyright (C) 2011-2015 Panasonic Corporation
+ * Copyright (C) 2015-2016 Socionext Inc.
+ *   Author: Masahiro Yamada <yamada.masahiro@socionext.com>
  *
  * SPDX-License-Identifier:	GPL-2.0+
  */
@@ -18,9 +20,6 @@
 #ifdef CONFIG_UNIPHIER_ETH
 	tmp |= SC_RSTCTRL_NRST_ETHER;
 #endif
-#ifdef CONFIG_USB_EHCI
-	tmp |= SC_RSTCTRL_NRST_STDMAC;
-#endif
 #ifdef CONFIG_NAND_DENALI
 	tmp |= SC_RSTCTRL_NRST_NAND;
 #endif