Migrate features and LTO from rules.mk to data driven (#23302)

keyboards/alf/x11/keyboard.json

@@ -8,6 +8,19 @@
     "pid": "0x0001",
     "device_version": "0.0.1"
   },
+  "build": {
+    "lto": true
+  },
+  "features": {
+    "backlight": true,
+    "bootmagic": true,
+    "command": false,
+    "console": false,
+    "extrakey": true,
+    "mousekey": true,
+    "nkro": false,
+    "rgblight": true
+  },
   "matrix_pins": {
     "cols": ["D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7", "F0", "F1", "F4", "F5", "F6"],
     "rows": ["B0", "B1", "B2", "B3", "B4", "B5", "B6"]

keyboards/alf/x11/rules.mk

@@ -1,13 +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 = no        # Console for debug
-COMMAND_ENABLE = no        # Commands for debug and configuration
-NKRO_ENABLE = no            # Enable N-Key Rollover
-BACKLIGHT_ENABLE = yes       # Enable keyboard backlight functionality
-RGBLIGHT_ENABLE = yes        # Enable keyboard RGB underglow
-AUDIO_ENABLE = no           # Audio output
-LTO_ENABLE = yes