remove tracing feature and just use tracing

it provides log with the needed stuff anyway

src/lib.rs

@@ -5,6 +5,5 @@ pub mod utils;
 
 pub mod re_exports {
     pub use async_trait;
-    pub use log;
     pub use serde_json;
 }

src/prelude.rs

@@ -5,9 +5,4 @@ pub use crate::data::{BigQueryTable, BigQueryTableBase, OrderDirection};
 
 pub type Result<T> = std::result::Result<T, Box<dyn std::error::Error + Send + Sync>>;
 
-#[cfg(not(feature = "tracing"))]
-pub use log::{debug, error, info, trace, warn};
-#[cfg(feature = "tracing")]
 pub use tracing::{debug, error, info, trace, warn};
-
-pub use log::LevelFilter;