Remove pointless `CUSTOM_MATRIX = no` (#15383)

keyboards/at_at/660m/rules.mk

@@ -15,7 +15,6 @@ EXTRAKEY_ENABLE = yes	# Audio control and System control
 CONSOLE_ENABLE = yes	# Console for debug
 COMMAND_ENABLE = yes    # Commands for debug and configuration
 NKRO_ENABLE = yes	    # USB Nkey Rollover
-CUSTOM_MATRIX = no # Custom matrix file
 # BACKLIGHT_ENABLE = yes
 # RGBLIGHT_ENABLE = yes
 NO_USB_STARTUP_CHECK = yes # Workaround for issue 6369

keyboards/cannonkeys/an_c/rules.mk

@@ -18,7 +18,6 @@ EXTRAKEY_ENABLE = yes	# Audio control and System control
 CONSOLE_ENABLE = yes	# Console for debug
 COMMAND_ENABLE = yes    # Commands for debug and configuration
 NKRO_ENABLE = yes	    # USB Nkey Rollover
-CUSTOM_MATRIX = no # Custom matrix file
 BACKLIGHT_ENABLE = yes
 RGBLIGHT_ENABLE = yes
 WS2812_DRIVER = spi

keyboards/cannonkeys/atlas/rules.mk

@@ -12,7 +12,6 @@ EXTRAKEY_ENABLE = yes       # Audio control and System control
 CONSOLE_ENABLE = yes        # Console for debug
 COMMAND_ENABLE = yes        # Commands for debug and configuration
 NKRO_ENABLE = yes           # USB Nkey Rollover
-CUSTOM_MATRIX = no          # Custom matrix file
 BACKLIGHT_ENABLE = no
 RGBLIGHT_ENABLE = yes
 WS2812_DRIVER = spi

keyboards/cannonkeys/chimera65/rules.mk

@@ -15,7 +15,6 @@ EXTRAKEY_ENABLE = yes	# Audio control and System control
 CONSOLE_ENABLE = yes	# Console for debug
 COMMAND_ENABLE = yes    # Commands for debug and configuration
 NKRO_ENABLE = yes	    # USB Nkey Rollover
-CUSTOM_MATRIX = no # Custom matrix file
 BACKLIGHT_ENABLE = yes
 RGBLIGHT_ENABLE = no
 

keyboards/cannonkeys/devastatingtkl/rules.mk

@@ -16,7 +16,6 @@ EXTRAKEY_ENABLE = yes	# Audio control and System control
 CONSOLE_ENABLE = yes	# Console for debug
 COMMAND_ENABLE = yes    # Commands for debug and configuration
 NKRO_ENABLE = yes	    # USB Nkey Rollover
-CUSTOM_MATRIX = no # Custom matrix file
 BACKLIGHT_ENABLE = yes
 RGBLIGHT_ENABLE = yes
 WS2812_DRIVER = spi

keyboards/cannonkeys/instant60/rules.mk

@@ -17,7 +17,6 @@ EXTRAKEY_ENABLE = yes	# Audio control and System control
 CONSOLE_ENABLE = yes	# Console for debug
 COMMAND_ENABLE = yes    # Commands for debug and configuration
 NKRO_ENABLE = yes	    # USB Nkey Rollover
-CUSTOM_MATRIX = no # Custom matrix file
 BACKLIGHT_ENABLE = yes
 RGBLIGHT_ENABLE = yes
 WS2812_DRIVER = spi

keyboards/cannonkeys/iron165/rules.mk

@@ -13,7 +13,6 @@ EXTRAKEY_ENABLE = yes	# Audio control and System control
 CONSOLE_ENABLE = yes	# Console for debug
 COMMAND_ENABLE = yes    # Commands for debug and configuration
 NKRO_ENABLE = yes	    # USB Nkey Rollover
-CUSTOM_MATRIX = no # Custom matrix file
 BACKLIGHT_ENABLE = yes
 RGBLIGHT_ENABLE = no
 

keyboards/cannonkeys/rekt1800/rules.mk

@@ -16,7 +16,6 @@ EXTRAKEY_ENABLE = yes       # Audio control and System control
 CONSOLE_ENABLE = yes        # Console for debug
 COMMAND_ENABLE = yes        # Commands for debug and configuration
 NKRO_ENABLE = yes           # USB Nkey Rollover
-CUSTOM_MATRIX = no          # Custom matrix file
 BACKLIGHT_ENABLE = yes
 RGBLIGHT_ENABLE = no
 

keyboards/cannonkeys/savage65/rules.mk

@@ -18,7 +18,6 @@ EXTRAKEY_ENABLE = yes	# Audio control and System control
 CONSOLE_ENABLE = yes	# Console for debug
 COMMAND_ENABLE = yes    # Commands for debug and configuration
 NKRO_ENABLE = yes	    # USB Nkey Rollover
-CUSTOM_MATRIX = no # Custom matrix file
 BACKLIGHT_ENABLE = yes
 RGBLIGHT_ENABLE = yes
 WS2812_DRIVER = spi

keyboards/cannonkeys/tmov2/rules.mk

@@ -18,7 +18,6 @@ EXTRAKEY_ENABLE = yes	# Audio control and System control
 CONSOLE_ENABLE = yes	# Console for debug
 COMMAND_ENABLE = yes    # Commands for debug and configuration
 NKRO_ENABLE = yes	    # USB Nkey Rollover
-CUSTOM_MATRIX = no # Custom matrix file
 BACKLIGHT_ENABLE = yes
 RGBLIGHT_ENABLE = yes
 WS2812_DRIVER = spi

keyboards/hadron/ver3/rules.mk

@@ -15,7 +15,6 @@ EXTRAKEY_ENABLE = yes	# Audio control and System control
 CONSOLE_ENABLE = no	# Console for debug
 COMMAND_ENABLE = yes    # Commands for debug and configuration
 NKRO_ENABLE = yes	    # USB Nkey Rollover
-CUSTOM_MATRIX = no # Custom matrix file
 AUDIO_ENABLE = yes
 RGBLIGHT_ENABLE = yes
 RGB_MATRIX_ENABLE = no # once arm_rgb is implemented

keyboards/handwired/ck4x4/rules.mk

@@ -14,7 +14,6 @@ EXTRAKEY_ENABLE = yes	# Audio control and System control
 CONSOLE_ENABLE = yes	# Console for debug
 COMMAND_ENABLE = yes    # Commands for debug and configuration
 NKRO_ENABLE = yes	    # USB Nkey Rollover
-CUSTOM_MATRIX = no # Custom matrix file
 
 DEFAULT_FOLDER = handwired/ck4x4
 

keyboards/miniaxe/rules.mk

@@ -19,7 +19,6 @@ RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
 AUDIO_ENABLE = no           # Audio output
 
 DEBUG_ENABLE = no
-CUSTOM_MATRIX = no         # Use custom matrix code
 SPLIT_KEYBOARD = yes        # Use shared split_common code
 
 LAYOUTS = split_3x5_3

keyboards/westfoxtrot/prophet/rules.mk

@@ -14,7 +14,6 @@ CONSOLE_ENABLE = no	# Console for debug
 COMMAND_ENABLE = no    # Commands for debug and configuration
 NKRO_ENABLE = yes	    # USB Nkey Rollover
 SLEEP_LED_ENABLE = yes
-CUSTOM_MATRIX = no # Custom matrix file
 BACKLIGHT_ENABLE = no
 RGBLIGHT_ENABLE = no
 

keyboards/xiaomi/mk02/rules.mk

@@ -12,6 +12,5 @@ EXTRAKEY_ENABLE = no	# Audio control and System control
 CONSOLE_ENABLE = no	# Console for debug
 COMMAND_ENABLE = no    # Commands for debug and configuration
 NKRO_ENABLE = no	    # USB Nkey Rollover
-CUSTOM_MATRIX = no # Custom matrix file
 # BACKLIGHT_ENABLE = yes # This is broken on 072 for some reason
 RGBLIGHT_ENABLE = no