Move matrix config to info.json, part 5 (#20003)

Co-authored-by: Nick Brassel <nick@tzarc.org>

keyboards/swiftrax/retropad/config.h

@@ -17,15 +17,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 #pragma once
 
-
-// ROWS: Top to bottom, COLS: Left to right
-
-#define MATRIX_ROW_PINS { C7, C6, B5 }
-#define MATRIX_COL_PINS { B4, D2 }
-
-/* COL2ROW or ROW2COL */
-#define DIODE_DIRECTION COL2ROW
-
 #define RGB_DI_PIN B7
 #ifdef  RGB_DI_PIN
 #define RGBLIGHT_EFFECT_BREATHING

keyboards/swiftrax/retropad/info.json

@@ -8,6 +8,11 @@
         "pid": "0xEB0C",
         "device_version": "0.0.1"
     },
+    "matrix_pins": {
+        "cols": ["B4", "D2"],
+        "rows": ["C7", "C6", "B5"]
+    },
+    "diode_direction": "COL2ROW",
     "encoder": {
         "rotary": [
             {"pin_a": "D0", "pin_b": "D1"}