Revert "vexpress64: fvp dram: add DRAM configuration"

This reverts commit fc04b923541d984b1544056fd3bfa8129d4e5aac where the
FVP DRAM configuration was added.

Signed-off-by: Ryan Harkin <ryan.harkin@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
diff --git a/board/armltd/vexpress64/Kconfig b/board/armltd/vexpress64/Kconfig
index e05f353..9014418 100644
--- a/board/armltd/vexpress64/Kconfig
+++ b/board/armltd/vexpress64/Kconfig
@@ -1,4 +1,4 @@
-if TARGET_VEXPRESS64_BASE_FVP || TARGET_VEXPRESS64_JUNO || TARGET_VEXPRESS64_BASE_FVP_DRAM
+if TARGET_VEXPRESS64_BASE_FVP || TARGET_VEXPRESS64_JUNO
 
 config SYS_BOARD
 	default "vexpress64"