[Keyboard] Disable features on SplitKB boards to fit under size (#15262)

keyboards/splitkb/kyria/rules.mk

@@ -7,8 +7,8 @@ BOOTLOADER = atmel-dfu
 # Build Options
 #   change yes to no to disable
 #
-BOOTMAGIC_ENABLE = no       # Enable Bootmagic Lite
-MOUSEKEY_ENABLE = yes      # Mouse keys
+BOOTMAGIC_ENABLE = no      # Enable Bootmagic Lite
+MOUSEKEY_ENABLE = no       # Mouse keys
 EXTRAKEY_ENABLE = yes      # Audio control and System control
 CONSOLE_ENABLE = no        # Console for debug
 COMMAND_ENABLE = no        # Commands for debug and configuration

keyboards/splitkb/zima/keymaps/via/rules.mk

@@ -1,2 +1,6 @@
 VIA_ENABLE      = yes
 HAPTIC_ENABLE   = no
+
+SPACE_CADET_ENABLE = no
+GRAVE_ESC_ENABLE = no
+MAGIC_ENABLE = no