Revert "Add log rotation (#6564)" (#6627)

This reverts commit 6eb2eb81c5.

substrate/client/cli/src/error.rs

@@ -17,7 +17,6 @@
 // along with this program. If not, see <https://www.gnu.org/licenses/>.
 
 //! Initialization errors.
-use flexi_logger::FlexiLoggerError;
 
 /// Result type alias for the CLI.
 pub type Result<T> = std::result::Result<T, Error>;
@@ -33,8 +32,6 @@ pub enum Error {
 	Service(sc_service::Error),
 	/// Client error
 	Client(sp_blockchain::Error),
-	/// Flexi Logger error
-	FlexiLogger(FlexiLoggerError),
 	/// Input error
 	#[from(ignore)]
 	Input(String),
@@ -68,7 +65,6 @@ impl std::error::Error for Error {
 			Error::Cli(ref err) => Some(err),
 			Error::Service(ref err) => Some(err),
 			Error::Client(ref err) => Some(err),
-			Error::FlexiLogger(ref err) => Some(err),
 			Error::Input(_) => None,
 			Error::InvalidListenMultiaddress => None,
 			Error::Other(_) => None,