Migrate features from rules.mk to DD (#23247)

keyboards/b_sides/rev41lp/keyboard.json

@@ -8,6 +8,15 @@
         "pid": "0x5F10",
         "device_version": "0.0.1"
     },
+    "features": {
+        "backlight": true,
+        "bootmagic": true,
+        "command": true,
+        "console": true,
+        "extrakey": true,
+        "mousekey": false,
+        "nkro": false
+    },
     "matrix_pins": {
         "cols": ["D4", "C6", "D7", "E6", "B4", "B5"],
         "rows": ["F4", "B2", "F5", "B3", "F6", "B1", "F7"]

keyboards/b_sides/rev41lp/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 = yes        # Console for debug
-COMMAND_ENABLE = yes        # Commands for debug and configuration
-NKRO_ENABLE = no            # Enable N-Key Rollover
-BACKLIGHT_ENABLE = yes      # Enable keyboard backlight functionality
-RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
-AUDIO_ENABLE = no           # Audio output