LevelDB contains key-values pairs in cache contract storage after removing

[oleksandrSydorenkoJ]

Preconditions
Active schain medium type with enabled JSON-RPC API

Version
Skaled 3.17.0-beta.11

To Reproduce

1. Deploy contract with self-destruct function and fill it for 1-2 MB
2. Invoke self-destruct function
3. Check the size of the contract's storage LevelDB

Expected state
Skaled should delete key-values pairs after self-destruct function and run compaction to free space in the levelDB

Actual state:
Skaled delete key-values pairs after self-destruct function and waiting for auto compaction of levelDB (unpredictable timeout)

Logs
after self-destruct without force compaction:
27M 12041

total key:  164175
total value 164175
value size: 5513863
key size: 8534711

After force compaction:
7,3M 12041

total key:  164175
total value 164175
value size: 5513863
key size: 8534711