Migrate features from rules.mk to DD (#23202)

keyboards/45_ats/keyboard.json

@@ -8,6 +8,14 @@
       "pid": "0x4511",
       "device_version": "0.0.1"
     },
+    "features": {
+        "bootmagic": true,
+        "command": true,
+        "console": true,
+        "extrakey": true,
+        "mousekey": true,
+        "nkro": false
+    },
     "matrix_pins": {
       "cols": ["E6", "B0", "B1", "B2", "B3", "B7", "F6", "F5", "F4", "C7", "F7", "C6", "B6", "D4"],
       "rows": ["D3", "D5", "D7", "D6"]

keyboards/45_ats/rules.mk

@@ -1,12 +0,0 @@
-# Build Options
-#   change yes to no to disable
-#
-BOOTMAGIC_ENABLE = yes      # Enable Bootmagic Lite
-MOUSEKEY_ENABLE = yes       # Mouse keys
-EXTRAKEY_ENABLE = yes       # Audio control and System control
-CONSOLE_ENABLE = yes        # Console for debug
-COMMAND_ENABLE = yes        # Commands for debug and configuration
-NKRO_ENABLE = no            # Enable N-Key Rollover
-BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
-RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
-AUDIO_ENABLE = no           # Audio output