[openwrt/openwrt] ramips: remove non-existant poe_passthrough for RouterBOARD 750Gr3

[LEDE Commits]

adrian pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/8484d6da1e70d9058cfd2c646c8931d786160bb4

commit 8484d6da1e70d9058cfd2c646c8931d786160bb4
Author: John Thomson <git at johnthomson.fastmail.com.au>
AuthorDate: Sat Jun 13 21:25:12 2020 +1000

    ramips: remove non-existant poe_passthrough for RouterBOARD 750Gr3
    
    This 750gr3 GPIO17 switch was added based on vendor source,
    but only the 760iGS (which shares the rbsysfs board identifier)
    device has the physical wiring. The 750Gr3 actually does not
    support PoE out.
    
    Apart from that, note that the gpio base (480) would have required
    this GPIO to be referenced as 497 if it was kept.
    
    Fixes: 6ba58b7b020c ("ramips: cleanup the RB750Gr3 support")
    
    Signed-off-by: John Thomson <git at johnthomson.fastmail.com.au>
    [commit title/message facelift]
    Signed-off-by: Adrian Schmutzler <freifunk at adrianschmutzler.de>
---
 target/linux/ramips/mt7621/base-files/etc/board.d/03_gpio_switches | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/target/linux/ramips/mt7621/base-files/etc/board.d/03_gpio_switches b/target/linux/ramips/mt7621/base-files/etc/board.d/03_gpio_switches
index e24e04f1d8..7787ddcbc7 100755
--- a/target/linux/ramips/mt7621/base-files/etc/board.d/03_gpio_switches
+++ b/target/linux/ramips/mt7621/base-files/etc/board.d/03_gpio_switches
@@ -7,9 +7,6 @@ board_config_update
 board=$(board_name)
 
 case "$board" in
-mikrotik,routerboard-750gr3)
-	ucidef_add_gpio_switch "poe_passthrough" "PoE Passthrough" "17"
-	;;
 telco-electronics,x1)
 	ucidef_add_gpio_switch "modem_reset" "Modem Reset" "16"
 	;;