delete seq2seq ts tutorial #4568

Job	Run time
pytorch_tutorial_build_worker (6, 15, linux.g5.4xlarge.nvidia.gpu)	22m 30s
pytorch_tutorial_build_worker (1, 15, linux.g5.12xlarge.nvidia.gpu)	15m 21s
pytorch_tutorial_build_worker (8, 15, linux.g5.4xlarge.nvidia.gpu)	16m 17s
pytorch_tutorial_build_worker (5, 15, linux.g5.4xlarge.nvidia.gpu)	23m 13s
pytorch_tutorial_build_worker (12, 15, linux.g5.4xlarge.nvidia.gpu)	28m 35s
pytorch_tutorial_build_worker (4, 15, linux.g5.4xlarge.nvidia.gpu)	37m 7s
pytorch_tutorial_build_worker (9, 15, linux.g5.4xlarge.nvidia.gpu)	17m 25s
pytorch_tutorial_build_worker (2, 15, linux.g5.4xlarge.nvidia.gpu)	39m 54s
pytorch_tutorial_build_worker (3, 15, linux.g5.4xlarge.nvidia.gpu)	22m 2s
pytorch_tutorial_build_worker (10, 15, linux.g5.4xlarge.nvidia.gpu)	15m 49s
pytorch_tutorial_build_worker (7, 15, linux.g5.4xlarge.nvidia.gpu)	25m 39s
pytorch_tutorial_build_worker (13, 15, linux.g5.4xlarge.nvidia.gpu)	26m 3s
pytorch_tutorial_build_worker (15, 15, linux.g5.4xlarge.nvidia.gpu)	18m 34s
pytorch_tutorial_build_worker (11, 15, linux.g5.4xlarge.nvidia.gpu)	20m 50s
pytorch_tutorial_build_worker (14, 15, linux.g5.4xlarge.nvidia.gpu)	33m 50s
pytorch_tutorial_build_manager	23m 43s
	6h 26m 52s

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