Migrate build target markers to keyboard.json - S (#23532)

keyboards/satt/comet46/keyboard.json

@@ -8,6 +8,12 @@
         "pid": "0x6060",
         "device_version": "0.0.1"
     },
+    "features": {
+        "bootmagic": false,
+        "extrakey": false,
+        "mousekey": false,
+        "nkro": true
+    },
     "processor": "atmega32u4",
     "bootloader": "caterina",
     "layouts": {

keyboards/satt/comet46/rules.mk

@@ -1,15 +1,3 @@
-# Build Options
-#   change yes to no to disable
-#
-BOOTMAGIC_ENABLE = no       # Enable Bootmagic Lite
-MOUSEKEY_ENABLE = no        # Mouse keys
-EXTRAKEY_ENABLE = no        # Audio control and System control
-CONSOLE_ENABLE = no         # Console for debug
-COMMAND_ENABLE = no         # Commands for debug and configuration
-NKRO_ENABLE = yes           # Enable N-Key Rollover
-BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
-RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
-AUDIO_ENABLE = no           # Audio output
 CUSTOM_MATRIX = lite
 
 # project specific files