minor code format fix

node/src/service.rs

@@ -15,7 +15,6 @@
 // along with Joystream node.  If not, see <http://www.gnu.org/licenses/>.
 
 #![warn(unused_extern_crates)]
-
 // Substrate implementation issue.
 #![allow(clippy::redundant_closure_call)]
 

runtime/src/primitives.rs

@@ -1,7 +1,6 @@
 //! Low-level types used throughout the Substrate code.
 
 #![warn(missing_docs)]
-
 #![cfg_attr(not(feature = "std"), no_std)]
 
 use sp_runtime::{