Migrate build target markers to keyboard.json - N (#23589)

keyboards/nasu/keyboard.json

@@ -8,6 +8,12 @@
         "pid": "0x4E53",
         "device_version": "0.0.1"
     },
+    "features": {
+        "bootmagic": true,
+        "extrakey": true,
+        "mousekey": true,
+        "nkro": true
+    },
     "matrix_pins": {
         "cols": ["A9", "A8", "B15", "B14", "B13", "B12", "B11", "B8", "B7", "B6", "B5", "B4", "B3", "A15", "A14"],
         "rows": ["A13", "A10", "B10", "B2", "A6"]

keyboards/nasu/rules.mk

@@ -1,15 +1,2 @@
 # Wildcard to allow APM32 MCU
 DFU_SUFFIX_ARGS = -v FFFF -p FFFF
-
-# 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 = 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