Migrate features from rules.mk to data driven - EFGH (#23248)

keyboards/handwired/swiftrax/cowfish/keyboard.json

@@ -8,6 +8,14 @@
         "pid": "0xEB53",
         "device_version": "0.0.1"
     },
+    "features": {
+        "bootmagic": true,
+        "command": false,
+        "console": false,
+        "extrakey": true,
+        "mousekey": false,
+        "nkro": false
+    },
     "matrix_pins": {
         "cols": ["B3", "B2", "B1", "F0", "F1", "F4", "F5", "F6", "F7", "B5", "B6", "B4", "C6", "D7", "C7", "D2", "D3", "D5"],
         "rows": ["D0", "D1", "B7", "E6", "D4", "D6"]

keyboards/handwired/swiftrax/cowfish/rules.mk

@@ -1,12 +0,0 @@
-# Build Options
-#   change yes to no to disable
-#
-BOOTMAGIC_ENABLE = yes      # Enable Bootmagic Lite
-MOUSEKEY_ENABLE = no        # 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 = no            # Enable N-Key Rollover
-BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
-RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
-AUDIO_ENABLE = no           # Audio output