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

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

keyboards/atreus/astar_mirrored/config.h

@@ -16,21 +16,4 @@
 
 #pragma once
 
-
-/*
- * Keyboard Matrix Assignments
- *
- * Change this to how you wired your keyboard
- * COLS: AVR pins used for columns, left to right
- * ROWS: AVR pins used for rows, top to bottom
- * DIODE_DIRECTION: COL2ROW = COL = Anode (+), ROW = Cathode (-, marked on diode)
- *                  ROW2COL = ROW = Anode (+), COL = Cathode (-, marked on diode)
- *
-*/
 #define PCBDOWN 1
-
-#define MATRIX_ROW_PINS { D0, D1, D3, D2 }
-#define MATRIX_COL_PINS { B7, D6, F7, F6, B6, D4, E6, B4, B5, C6, D7 }
-
-/* COL2ROW, ROW2COL*/
-#define DIODE_DIRECTION COL2ROW

keyboards/atreus/astar_mirrored/info.json

@@ -1,4 +1,9 @@
 {
+    "matrix_pins": {
+        "cols": ["B7", "D6", "F7", "F6", "B6", "D4", "E6", "B4", "B5", "C6", "D7"],
+        "rows": ["D0", "D1", "D3", "D2"]
+    },
+    "diode_direction": "COL2ROW",
     "processor": "atmega32u4",
     "bootloader": "caterina"
 }