rustfmt: Drop util/logger.rs from exclusion list

Author: tnull

rustfmt_excluded_files

@@ -73,7 +73,6 @@ lightning/src/routing/scoring.rs
 lightning/src/routing/test_utils.rs
 lightning/src/routing/utxo.rs
 lightning/src/util/invoice.rs
-lightning/src/util/logger.rs
 lightning/src/util/macro_logger.rs
 lightning/src/util/message_signing.rs
 lightning/src/util/mod.rs