lantig: xway_legacy: remove default build barriers

This sub-target is source only now. We don't need to disable build
for specific devices.

Signed-off-by: Shiji Yang <[email protected]>
Link: https://github.com/openwrt/openwrt/pull/18745
Signed-off-by: Robert Marko <[email protected]>

target/linux/lantiq/image/xway_legacy.mk

@@ -8,7 +8,6 @@ define Device/arcadyan_arv4518pwr01
 	ltq-adsl-app ppp-mod-pppoa \
 	kmod-ath5k wpad-basic-mbedtls
   SUPPORTED_DEVICES += ARV4518PWR01
-  DEFAULT := n
 endef
 TARGET_DEVICES += arcadyan_arv4518pwr01
 
@@ -22,7 +21,6 @@ define Device/arcadyan_arv4518pwr01a
 	ltq-adsl-app ppp-mod-pppoa \
 	kmod-ath5k wpad-basic-mbedtls
   SUPPORTED_DEVICES += ARV4518PWR01A
-  DEFAULT := n
 endef
 TARGET_DEVICES += arcadyan_arv4518pwr01a
 
@@ -40,7 +38,6 @@ define Device/arcadyan_arv4520pw
 	ltq-adsl-app ppp-mod-pppoa \
 	kmod-rt61-pci wpad-basic-mbedtls
   SUPPORTED_DEVICES += ARV4520PW
-  DEFAULT := n
 endef
 TARGET_DEVICES += arcadyan_arv4520pw
 
@@ -56,7 +53,6 @@ define Device/arcadyan_arv4525pw
 	kmod-ltq-adsl-danube-fw-b kmod-ltq-atm-danube \
 	ltq-adsl-app ppp-mod-pppoa -swconfig
   SUPPORTED_DEVICES += ARV4525PW
-  DEFAULT := n
 endef
 TARGET_DEVICES += arcadyan_arv4525pw
 
@@ -72,6 +68,5 @@ define Device/arcadyan_arv452cqw
 	kmod-ltq-adsl-danube-fw-b kmod-ltq-atm-danube \
 	ltq-adsl-app ppp-mod-pppoa
   SUPPORTED_DEVICES += ARV452CQW
-  DEFAULT := n
 endef
 TARGET_DEVICES += arcadyan_arv452cqw