Remove extra underscore from MASTER_RIGHT define

keyboards/lets_split/keymaps/OLED_sample/config.h

@@ -31,7 +31,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 /* Select hand configuration */
 
 #define MASTER_LEFT
-// #define _MASTER_RIGHT
+// #define MASTER_RIGHT
 // #define EE_HANDS
 #define FLIP_HALF
 
@@ -57,4 +57,4 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define RGBLIGHT_SAT_STEP 17
 #define RGBLIGHT_VAL_STEP 17
 
-#endif
+#endif