ramips: remove redundant mtd-eeprom in mt76x8 DTS files

In mt7628an.dtsi, calibration data for wmac is already defined:
mediatek,mtd-eeprom = <&factory 0x0>;

Thus, this patch removes redundant entries of this property in
derived DTS files.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

target/linux/ramips/dts/mt7628an_alfa-network_awusfree1.dts

@@ -163,5 +163,4 @@
 
 &wmac {
 	status = "okay";
-	mediatek,mtd-eeprom = <&factory 0x0>;
 };

target/linux/ramips/dts/mt7628an_glinet_gl-mt300n-v2.dts

@@ -90,7 +90,6 @@
 
 &wmac {
 	status = "okay";
-	ralink,mtd-eeprom = <&factory 0x0>;
 };
 
 &spi0 {

target/linux/ramips/dts/mt7628an_glinet_vixmini.dts

@@ -63,8 +63,6 @@
 
 &wmac {
 	status = "okay";
-
-	ralink,mtd-eeprom = <&factory 0x0>;
 };
 
 &spi0 {

target/linux/ramips/dts/mt7628an_netgear_r6120.dts

@@ -133,7 +133,6 @@
 
 &wmac {
 	status = "okay";
-	mediatek,mtd-eeprom = <&factory 0x0>;
 };
 
 &ethernet {

target/linux/ramips/dts/mt7628an_skylab_skw92a.dts

@@ -59,7 +59,6 @@
 
 &wmac {
 	status = "okay";
-	ralink,mtd-eeprom = <&factory 0x0>;
 };
 
 &spi0 {

target/linux/ramips/dts/mt7628an_tplink_tl-wr840n-v5.dts

@@ -91,7 +91,6 @@
 &wmac {
 	status = "okay";
 	mtd-mac-address = <&factory 0xf100>;
-	mediatek,mtd-eeprom = <&factory 0x0>;
 };
 
 &ethernet {

target/linux/ramips/dts/mt7628an_unielec_u7628-01.dtsi

@@ -126,7 +126,6 @@
 
 &wmac {
 	status = "okay";
-	ralink,mtd-eeprom = <&factory 0x0>;
 };
 
 &pinctrl {

target/linux/ramips/dts/mt7628an_zyxel_keenetic-extra-ii.dts

@@ -184,7 +184,6 @@
 
 &wmac {
 	status = "okay";
-	mediatek,mtd-eeprom = <&factory 0x0>;
 };
 
 &pcie {