Update iris 3 (#4307)

* Fix incorrect LED pin assignment

* Strip out extra newline

keyboards/iris/rev1/config.h

@@ -63,7 +63,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 /* ws2812 RGB LED */
 #define RGB_DI_PIN D3
-
 #define RGBLED_NUM 12    // Number of LEDs
 
 /*

keyboards/iris/rev1_led/config.h

@@ -63,7 +63,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 /* ws2812 RGB LED */
 #define RGB_DI_PIN D3
-
 #define RGBLED_NUM 12    // Number of LEDs
 
 /*

keyboards/iris/rev2/config.h

@@ -63,7 +63,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 /* ws2812 RGB LED */
 #define RGB_DI_PIN D3
-
 #define RGBLED_NUM 12    // Number of LEDs
 
 /*

keyboards/iris/rev3/config.h

@@ -58,12 +58,11 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
     keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
 )
 
-#define BACKLIGHT_PIN B5
+#define BACKLIGHT_PIN B6
 #define BACKLIGHT_LEVELS 5
 
 /* ws2812 RGB LED */
 #define RGB_DI_PIN F7
-
 #define RGBLED_NUM 12    // Number of LEDs
 
 /*