ARM: dts: romulus: Remove MAX31785 device

Romulus uses ASPEED's fan tach instead of max31785:

     * Pass1's max31785 is always reset by CPLD
     * Pass2's max31785 is not connected
Signed-off-by: Lei YU <mine260309@gmail.com>
Signed-off-by: Joel Stanley <joel@jms.id.au>

arch/arm/boot/dts/aspeed-bmc-opp-romulus.dts

@@ -183,11 +183,6 @@ rtc@32 {
 
 &i2c12 {
 	status = "okay";
-
-	max31785@52 {
-		compatible = "maxim,max31785";
-		reg = <0x52>;
-	};
 };
 
 &gpio {