Revert snapshot on release-5.0 branch#2121

Merged

JaySon-Huang merged 6 commits intopingcap:release-5.0from JaySon-Huang:revert_snapshot

Jun 8, 2021

+964-3,340

Commits on Jun 8, 2021

Revert "cherry pick pingcap#2017 pingcap#2020 pingcap#2051 to release-5.0 (pingcap#2074 )"
JaySon-Huang
committed
Revert "Fix compile error on Mac Clang 12.0.5 (pingcap#2058 ) (pingcap#2070 )"
JaySon-Huang
committed
Revert "Fix ingesting file may add ref page to deleted page (pingcap#2054 ) (pingcap#2055 )"
JaySon-Huang
committed
Revert "Fix bug for unexpected deleted ingest file (pingcap#2047 ) (pingcap#2048 )"
JaySon-Huang
committed
Revert "Pre-handle SSTFiles to DTFiles when applying snapshots (pingcap#1439 ) (pingcap#1867 )"
JaySon-Huang
committed
Fix comment
JaySon-Huang
committed