Fix broken unit test for `--gtest_filter='StorageDeltaMergeTest:RegionKVStoreTest'`#4903

Merged

ti-chi-bot merged 3 commits intopingcap:masterfrom JaySon-Huang:fix_ut

May 30, 2022

+38-156

Commits on May 30, 2022

Fix fail for --gtest_filter='*StorageDeltaMergeTest*:RegionKVStoreTest.KVStore'
JaySon-Huang
committed
enable tests & clenup config for mock test
JaySon-Huang
committed
Remove IStorage object from TiFlash context after dropped
JaySon-Huang
committed