ARM: dts: msm: Remove USB UICC LUNs from 8992 and 8994

UICC feature is no longer supported on MSM8992 and MSM8994, so
there is also no need to expose it as a mass storage LUN device
over USB. Remove it.

Change-Id: Ia8e0337563a9a57dbd3c9bd1c40ad6467151ec1e
Signed-off-by: Jack Pham <jackp@codeaurora.org>