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

keyboards/handwired/retro_refit/keyboard.json

@@ -9,6 +9,14 @@
     "device_version": "0.0.1",
     "force_nkro": true
   },
+  "features": {
+    "bootmagic": true,
+    "command": true,
+    "console": true,
+    "extrakey": true,
+    "mousekey": true,
+    "nkro": true
+  },
   "matrix_pins": {
     "cols": ["B0", "B1", "B2", "B3", "D2", "D3", "C7", "D5"],
     "rows": ["D4", "D7", "B4", "B5", "B6", "F7", "F6", "F5", "F4", "F1", "F0"]

keyboards/handwired/retro_refit/rules.mk

@@ -1,10 +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 = yes           # Enable N-Key Rollover
-# BACKLIGHT_ENABLE = yes	# Enable keyboard backlight functionality