fix(plat/arm): remove unused memory node

memory information is passed to kernel via u-boot.

Signed-off-by: Usama Arif <usama.arif@arm.com>
Change-Id: I3ef31047f92d96302cc98257e965751929a08541
diff --git a/fdts/tc.dts b/fdts/tc.dts
index f66d556..31fcfe2 100644
--- a/fdts/tc.dts
+++ b/fdts/tc.dts
@@ -161,11 +161,6 @@
 
 	};
 
-	memory@80000000 {
-		device_type = "memory";
-		reg = <0x0 0x80000000 0x0 0x7d000000>;
-	};
-
 	reserved-memory {
 		#address-cells = <2>;
 		#size-cells = <2>;