Remove lightning-net-tokio from exclusion list

Author: tnull

rustfmt_excluded_files

@@ -6,7 +6,6 @@
 ./lightning-invoice/src/tb.rs
 ./lightning-invoice/src/utils.rs
 ./lightning-invoice/tests/ser_de.rs
-./lightning-net-tokio/src/lib.rs
 ./lightning-persister/src/fs_store.rs
 ./lightning-persister/src/lib.rs
 ./lightning-persister/src/test_utils.rs