async-trait isn't needed

1--transforming-sync-to-async/provided-code/Cargo.lock

@@ -128,17 +128,6 @@ version = "4.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fbb36e985947064623dbd357f727af08ffd077f93d696782f3c56365fa2e2799"
 
-[[package]]
-name = "async-trait"
-version = "0.1.77"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c980ee35e870bd1a4d2c8294d4c04d0499e67bca1e4b5cefcc693c2fa00caea9"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn 2.0.52",
-]
-
 [[package]]
 name = "atomic-waker"
 version = "1.1.2"
@@ -672,7 +661,6 @@ name = "manning-lp-async-rust-project-1-m1"
 version = "0.1.0"
 dependencies = [
  "async-std",
- "async-trait",
  "chrono",
  "clap",
  "yahoo_finance_api",

1--transforming-sync-to-async/provided-code/Cargo.toml

@@ -10,5 +10,4 @@ version = "0.1.0"
 chrono = { version = "0.4", features = ["serde"] }
 clap = {version = "3.1.8", features = ["derive"]}
 yahoo_finance_api = "1.1"
-async-trait = "0.1"
 async-std = { version = "1.6", features = ["attributes", "tokio1"] }