This reverts commit 84d38e547a.

Merge pull request !27381 from Greatpan/master

Merge pull request !20043 from 杨旭华/YelpReview

Merge pull request !27379 from ms_yan/code_docs_mix_operations

Merge pull request !25315 from 路雄博/xdivy

Merge pull request !25500 from bubb1e/flatten

Merge pull request !25298 from 路雄博/Acos

Merge pull request !27323 from DeshiChen/1206_elim_params

Merge pull request !27386 from ling/sr

Merge pull request !27292 from huangbingjian/fallback_error

Merge pull request !27157 from amirama/export_amirama

Merge pull request !27380 from Nizzan/export_nizzan

Merge pull request !27300 from hewei/core_api

Merge pull request !27376 from laiyongqiang/fix_mind_rt_ci

Merge pull request !27278 from DeshiChen/1205_cluster_circle

Merge pull request !27321 from lilei/modify_GroupNorm

Merge pull request !27329 from Margaret_wangrui/operator

Merge pull request !27334 from Liu_Xuu/trt_1206_videoedit

Merge pull request !27353 from Margaret_wangrui/add_deprecated

Merge pull request !27354 from ZPaC/dir-of-distributed

Merge pull request !27081 from markuskunej/move_offload_check_to_c

1. Sequeue --> Sequence
2. Interger --> Integer

Merge pull request !27279 from lingyunli63/hash_consider_processor

Merge pull request !27335 from yelihua/dev

Merge pull request !27330 from ling/sr

Merge pull request !27328 from lichen/fix_resnet50_8p_performance

Merge pull request !27362 from yeyunpeng2020/ci2

Merge pull request !27311 from qinzheng/check_model_support

Merge pull request !27082 from 陈子熹/Gather_version_update

Merge pull request !27237 from lilei/modify_virtualdataset_for_master

Merge pull request !27297 from hwjiaorui/mindrt-bug-fix

Merge pull request !27271 from huchunmei/master

Merge pull request !27349 from lvmingfu/code_docs_master9

Merge pull request !27305 from Greatpan/master

Merge pull request !27186 from looop5/out_shape