BREAKING CHANGE: get rid of tracing

Cargo.lock

Cargo.toml

sbroad-cartridge/Cargo.toml

sbroad-cartridge/cartridge/roles/sbroad-router.lua

sbroad-cartridge/src/api/exec_query.rs

sbroad-cartridge/src/cartridge/router.rs

sbroad-cartridge/src/router.lua

sbroad-cartridge/test_app/README.md

sbroad-cartridge/test_app/test/data/config.yml

sbroad-core/Cargo.toml

sbroad-core/src/backend/sql/ir.rs

sbroad-core/src/backend/sql/tree.rs

sbroad-core/src/executor.rs

sbroad-core/src/executor/bucket.rs

sbroad-core/src/executor/engine.rs

sbroad-core/src/executor/engine/helpers.rs

sbroad-core/src/executor/engine/helpers/storage.rs

sbroad-core/src/executor/engine/helpers/vshard.rs

sbroad-core/src/executor/ir.rs

sbroad-core/src/executor/protocol.rs