Vlv2TbltDevicePkg/Wpce791: Remove the unused variable

Fix the following error from gcc:

Vlv2TbltDevicePkg/Wpce791/LpcDriver.c: In function ?LpcDriverStart?:
Vlv2TbltDevicePkg/Wpce791/LpcDriver.c:239:27: error: variable ?LpcDev? set but not used [-Werror=unused-but-set-variable]

Cc: David Wei <david.wei@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Gary Lin <glin@suse.com>
diff --git a/Vlv2TbltDevicePkg/Wpce791/LpcDriver.c b/Vlv2TbltDevicePkg/Wpce791/LpcDriver.c
index be99b4c..5b0c25c 100644
--- a/Vlv2TbltDevicePkg/Wpce791/LpcDriver.c
+++ b/Vlv2TbltDevicePkg/Wpce791/LpcDriver.c
Binary files differ