Migrate build target markers to keyboard.json - R (#23542)

keyboards/rmi_kb/herringbone/v1/keyboard.json

@@ -8,6 +8,12 @@
         "pid": "0x04E5",
         "device_version": "0.1.2"
     },
+    "features": {
+        "bootmagic": true,
+        "extrakey": true,
+        "mousekey": true,
+        "nkro": false
+    },
     "matrix_pins": {
         "cols": ["A0", "A1", "A2", "A3", "A4", "A5", "D6", "D5", "D1", "B0", "B1", "B2", "B3", "B4", "D7"],
         "rows": ["C4", "C5", "C6", "C7", "A7", "A6"]

keyboards/rmi_kb/herringbone/v1/rules.mk

@@ -1,15 +1,2 @@
 # Processor frequency
 F_CPU = 16000000
-
-# 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 = no       # Enable keyboard backlight functionality
-RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
-AUDIO_ENABLE = no           # Audio output