Clean comments

Author: thrly

boards/shields/tempest/tempest.dtsi

@@ -30,9 +30,6 @@
         >;
     };
 
-    /* TODO: what happens when extra keys (SW06) aren't used? */
-
-
     kscan0: kscan {
         compatible = "zmk,kscan-gpio-matrix";
         label = "KSCAN";