Remove sparse attention base class and refactor vanilla - #2

Remove sparse attention base class and refactor vanilla#2

heyuhhh merged 2 commits into

heyuhhh:user/yuhangh/sa_op1_draftheyuhhh/TensorRT-LLM:user/yuhangh/sa_op1_draftfrom

lfr-0531:user/fanrongl/refactor_op1lfr-0531/TensorRT-LLM:user/fanrongl/refactor_op1Copy head branch name to clipboard