Remove QMK_KEYBOARD_CONFIG_H (#11576)

keyboards/keebio/levinson/keymaps/losinggeneration/config.h

@@ -16,10 +16,7 @@ You should have received a copy of the GNU General Public License
 long with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef CONFIG_USER_H
-#define CONFIG_USER_H
-
-#include QMK_KEYBOARD_CONFIG_H
+#pragma once
 
 /* Use I2C or Serial, not both */
 
@@ -38,5 +35,3 @@ long with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define RGBLIGHT_HUE_STEP 8
 #define RGBLIGHT_SAT_STEP 8
 #define RGBLIGHT_VAL_STEP 8
-
-#endif