Change include guards in tmk_core/ and drivers/ to pragma once (#11240)

tmk_core/protocol/news.h

@@ -35,8 +35,8 @@ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 POSSIBILITY OF SUCH DAMAGE.
 */
 
-#ifndef NEWS_H
-#define NEWS_H
+#pragma once
+
 /*
  * Primitive PS/2 Library for AVR
  */
@@ -46,5 +46,3 @@ void    news_init(void);
 uint8_t news_recv(void);
 
 /* device role */
-
-#endif