Various cleanups to store classes #2322

Job	Run time
macOS [UBSAN] [lmdb \| clang]	42m 17s
macOS [ASAN] [lmdb \| clang]	33m 22s
Linux [UBSAN] [lmdb \| clang]	40m 28s
macOS [TSAN] [lmdb \| clang]	33m 29s
Linux [ASAN] [lmdb \| clang]	40m 23s
macOS [UBSAN] [rocksdb \| clang]	41m 44s
Linux [ASAN_INT] [lmdb \| clang] (Errors Ignored)	41m 3s
macOS [ASAN] [rocksdb \| clang]	40m 34s
Linux [TSAN] [lmdb \| clang]	44m 0s
macOS [TSAN] [rocksdb \| clang]	53m 32s
Linux [LEAK] [lmdb \| clang] (Errors Ignored)	41m 46s
Linux [UBSAN] [rocksdb \| clang]	51m 14s
Linux [ASAN] [rocksdb \| clang]	55m 42s
Linux [ASAN_INT] [rocksdb \| clang] (Errors Ignored)	58m 30s
Linux [LEAK] [rocksdb \| clang] (Errors Ignored)	55m 56s
	11h 14m 0s

Provide feedback