Add references for is_keyboard_left() (#10850)

* Add references for is_keyboard_left()

* Remove proto from bootmagic_lite.c

1 files changed, 1 insertions, 3 deletions

diff --git a/tmk_core/common/bootmagic_lite.c b/tmk_core/common/bootmagic_lite.c
index 38275cdd30..cbf756a175 100644
--- a/tmk_core/common/bootmagic_lite.c
+++ b/tmk_core/common/bootmagic_lite.c
@@ -1,7 +1,5 @@
 #include "quantum.h"
 
-bool is_keyboard_left(void);
-
 /** \brief Reset eeprom
  *
  * ...just incase someone wants to only change the eeprom behaviour
@@ -48,4 +46,4 @@ __attribute__((weak)) void bootmagic_lite(void) {
         // Jump to bootloader.
         bootloader_jump();
     }
-}
\ No newline at end of file
+}