fix: remove setting read blocks(database-lab#212)
Description
Number of read blocks is not necessary for now since the Database Lab Engine counts read bytes directly.
Related issue
Examples
Checklist
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the MR description has been reviewed -
this MR contains text changes and they have been reviewed OR there are no texts changes -
this MR contains GUI/CLI changes and they have been reviewed OR there are no GUI/CLI changes -
this MR contains API changes and they have been reviewed OR there are no API changes
Edited by Artyom Kartasov