hikey960: Drop ufs-hisi.ko from ramdisk

The gki_defconfig now includes the ufs-hisi driver,
so drop adding the ufs-hisi.ko file to avoid build failures.

Signed-off-by: John Stultz <john.stultz@linaro.org>
Change-Id: Ic649ab8b45ec9cf6a873ebc8af0f16c08c4ea5d1
diff --git a/hikey960.mk b/hikey960.mk
index 035002e..22e8f6f 100644
--- a/hikey960.mk
+++ b/hikey960.mk
@@ -52,7 +52,6 @@
     BOARD_VENDOR_KERNEL_MODULES += $(HIKEY_MODS)
     BOARD_VENDOR_RAMDISK_KERNEL_MODULES += \
 	$(HIKEY_MOD_DIR)/ion_cma_heap.ko \
-	$(HIKEY_MOD_DIR)/sdcardfs.ko \
-	$(HIKEY_MOD_DIR)/ufs-hisi.ko
+	$(HIKEY_MOD_DIR)/sdcardfs.ko
   endif
 endif