ARM: dts: msm8974: Remove "unused" reserved region

sources for msm8974, this isn't actually a reserved region.
Instead it's marked as "unused" for reserved regions. Let's
remove it so we get back a good chunk of memory.

Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>

arch/arm/boot/dts/qcom-msm8974.dtsi

@@ -60,11 +60,6 @@ rmtfs@0fd80000 {
 			reg = <0x0fd80000 0x180000>;
 			no-map;
 		};
-
-		unused@0ff00000 {
-			reg = <0x0ff00000 0x10100000>;
-			no-map;
-		};
 	};
 
 	cpus {