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

keyboards/tg4x/keyboard.json

@@ -29,6 +29,18 @@
     "ws2812": {
         "pin": "D2"
     },
+    "build": {
+        "lto": true
+    },
+    "features": {
+        "bootmagic": false,
+        "command": false,
+        "console": false,
+        "extrakey": true,
+        "mousekey": true,
+        "nkro": false,
+        "rgblight": true
+    },
     "matrix_pins": {
         "cols": ["D3", "B3", "B1", "F7", "F6", "F5", "F4"],
         "rows": ["B5", "B4", "E6", "D7", "C6", "D4", "D0", "D1"]

keyboards/tg4x/rules.mk

@@ -1,14 +0,0 @@
-# Build Options
-#   change yes to no to disable
-#
-BOOTMAGIC_ENABLE = no       # 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 = no       # Enable keyboard backlight functionality
-RGBLIGHT_ENABLE = yes        # Enable keyboard RGB underglow
-AUDIO_ENABLE = no           # Audio output
-
-LTO_ENABLE = yes