ramips: drop unsupported fit image option with-initrd

This option will only take effect when the "separate_ramdisk"
feature was enabled. However, this target does not support
this feature. It is an obvious copy and paste issue.

Signed-off-by: Shiji Yang <[email protected]>
Link: https://github.com/openwrt/openwrt/pull/17832
Signed-off-by: Hauke Mehrtens <[email protected]>

target/linux/ramips/image/mt7621.mk

@@ -2870,7 +2870,7 @@ define Device/tplink_eap613-v1
   DEVICE_PACKAGES := kmod-mt7915-firmware -uboot-envtools
   TPLINK_BOARD_ID := EAP610-V3
   KERNEL := kernel-bin | lzma | fit lzma $$(KDIR)/image-$$(firstword $$(DEVICE_DTS)).dtb | pad-to 64k
-  KERNEL_INITRAMFS := kernel-bin | lzma | fit lzma $$(KDIR)/image-$$(firstword $$(DEVICE_DTS)).dtb with-initrd
+  KERNEL_INITRAMFS := kernel-bin | lzma | fit lzma $$(KDIR)/image-$$(firstword $$(DEVICE_DTS)).dtb
   IMAGE_SIZE := 13248k
 endef
 TARGET_DEVICES += tplink_eap613-v1
@@ -2883,7 +2883,7 @@ define Device/tplink_eap615-wall-v1
   DEVICE_PACKAGES := kmod-mt7915-firmware -uboot-envtools
   TPLINK_BOARD_ID := EAP615-WALL-V1
   KERNEL := kernel-bin | lzma -d22 | fit lzma $$(KDIR)/image-$$(firstword $$(DEVICE_DTS)).dtb | pad-to 64k
-  KERNEL_INITRAMFS := kernel-bin | lzma -d22 | fit lzma $$(KDIR)/image-$$(firstword $$(DEVICE_DTS)).dtb with-initrd
+  KERNEL_INITRAMFS := kernel-bin | lzma -d22 | fit lzma $$(KDIR)/image-$$(firstword $$(DEVICE_DTS)).dtb
   IMAGE_SIZE := 13248k
 endef
 TARGET_DEVICES += tplink_eap615-wall-v1