Change keyboard level include guards to pragma once (#14248)

* Change keyboard level include guards to `pragma once`

And clean up a lot of layout macros

* Oops

* Remove dangling endif

keyboards/percent/canoe/config.h

@@ -15,8 +15,7 @@ You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef CANOE_CONFIG_H
-#define CANOE_CONFIG_H
+#pragma once
 
 #include "config_common.h"
 
@@ -44,5 +43,3 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define BACKLIGHT_LEVELS 3
 
 #define RGBLIGHT_ANIMATIONS
-
-#endif