get rid of flask tutorials #4565

Job	Run time
pytorch_tutorial_build_worker (2, 15, linux.g5.4xlarge.nvidia.gpu)	40m 48s
pytorch_tutorial_build_worker (3, 15, linux.g5.4xlarge.nvidia.gpu)	22m 0s
pytorch_tutorial_build_worker (6, 15, linux.g5.4xlarge.nvidia.gpu)	21m 19s
pytorch_tutorial_build_worker (1, 15, linux.g5.12xlarge.nvidia.gpu)	16m 55s
pytorch_tutorial_build_worker (5, 15, linux.g5.4xlarge.nvidia.gpu)	23m 2s
pytorch_tutorial_build_worker (4, 15, linux.g5.4xlarge.nvidia.gpu)	37m 25s
pytorch_tutorial_build_worker (8, 15, linux.g5.4xlarge.nvidia.gpu)	14m 56s
pytorch_tutorial_build_worker (7, 15, linux.g5.4xlarge.nvidia.gpu)	32m 7s
pytorch_tutorial_build_worker (12, 15, linux.g5.4xlarge.nvidia.gpu)	31m 9s
pytorch_tutorial_build_worker (10, 15, linux.g5.4xlarge.nvidia.gpu)	16m 31s
pytorch_tutorial_build_worker (11, 15, linux.g5.4xlarge.nvidia.gpu)	16m 28s
pytorch_tutorial_build_worker (15, 15, linux.g5.4xlarge.nvidia.gpu)	25m 41s
pytorch_tutorial_build_worker (9, 15, linux.g5.4xlarge.nvidia.gpu)	17m 25s
pytorch_tutorial_build_worker (14, 15, linux.g5.4xlarge.nvidia.gpu)	35m 20s
pytorch_tutorial_build_worker (13, 15, linux.g5.4xlarge.nvidia.gpu)	19m 28s
pytorch_tutorial_build_manager	21m 36s
	6h 32m 10s

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