contrib: remove TP-Link RE450/RE355 #320

Job	Run time
generate_target_matrix	3s
build_firmware (ath79-generic)	2h 2m 49s
build_firmware (ath79-mikrotik)	1h 53m 35s
build_firmware (ath79-nand)	1h 52m 50s
build_firmware (bcm27xx-bcm2708)	1h 42m 39s
build_firmware (bcm27xx-bcm2709)	2h 38m 13s
build_firmware (bcm27xx-bcm2710)	2h 26m 8s
build_firmware (bcm27xx-bcm2711)	2h 43m 59s
build_firmware (ipq40xx-generic)	1h 58m 15s
build_firmware (ipq40xx-mikrotik)	1h 55m 24s
build_firmware (ipq806x-generic)	2h 24m 31s
build_firmware (lantiq-xrx200)	1h 56m 43s
build_firmware (lantiq-xway)	2h 29m 39s
build_firmware (mediatek-mt7622)	2h 1m 6s
build_firmware (mpc85xx-p1010)	1h 49m 24s
build_firmware (mpc85xx-p1020)	2h 7m 53s
build_firmware (mvebu-cortexa9)	2h 17m 19s
build_firmware (ramips-mt7620)	2h 13m 41s
build_firmware (ramips-mt7621)	2h 41m 10s
build_firmware (ramips-mt76x8)	1h 55m 21s
build_firmware (realtek-rtl838x)	1h 37m 43s
build_firmware (rockchip-armv8)	2h 3m 49s
build_firmware (sunxi-cortexa7)	2h 21m 31s
build_firmware (x86-64)	2h 45m 10s
build_firmware (x86-generic)	2h 35m 56s
build_firmware (x86-geode)	2h 26m 34s
build_firmware (x86-legacy)	2h 42m 50s
create_release	0s
	2d 9h 44m 15s

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