ARM: multi_v7_defconfig: Remove stih41x phy Kconfig symbol.

This IP is only found on STiH415/6 silicon and support
for these SoCs is being removed from the kernel.
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Cc: <kishon@ti.com>
Acked-by: Patrice Chotard <patrice.chotard@st.com>

arch/arm/configs/multi_v7_defconfig

@@ -862,7 +862,6 @@ CONFIG_PHY_ROCKCHIP_USB=m
 CONFIG_PHY_QCOM_APQ8064_SATA=m
 CONFIG_PHY_MIPHY28LP=y
 CONFIG_PHY_RCAR_GEN2=m
-CONFIG_PHY_STIH41X_USB=y
 CONFIG_PHY_STIH407_USB=y
 CONFIG_PHY_SUN4I_USB=y
 CONFIG_PHY_SUN9I_USB=y