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/ckeys/obelus/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 CONFIG_H
-#define CONFIG_H
+#pragma once
 
 #include "config_common.h"
 
@@ -157,5 +156,3 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
   #define AUDIO_PIN C6
   #define STARTUP_SONG SONG(STARTUP_SOUND)
 #endif
-
-#endif

keyboards/ckeys/obelus/obelus.h

@@ -1,5 +1,4 @@
-#ifndef OBELUS_H
-#define OBELUS_H
+#pragma once
 
 #include "quantum.h"
 
@@ -12,12 +11,9 @@
     k10, k11, k12, k13, \
     k20, k21, k22, k23, \
     k30, k31, k32, k33 \
-) \
-{ \
+) { \
     { k00, k01, k02, k03 }, \
     { k10, k11, k12, k13 }, \
     { k20, k21, k22, k23 }, \
     { k30, k31, k32, k33 } \
 }
-
-#endif