remove Python print_function import #36706

Job	Run time
build (chibios, Durandal)	17m 40s
build (chibios, MatekF405)	15m 30s
build (chibios, KakuteF7)	14m 9s
build (chibios, MatekH743-bdshot)	17m 24s
build (chibios, MambaH743v4)	16m 10s
build (chibios, Pixhawk1-1M)	16m 16s
build (chibios, MatekF405-CAN)	2m 29s
build (chibios, DrotekP3Pro)	2m 30s
build (chibios, Hitec-Airspeed)	3m 6s
build (chibios, f103-GPS)	4m 7s
build (disco, armhf)	14m 35s
	2h 3m 56s

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