replaced match with if to shorten the code

ethcore/src/blockchain/blockchain.rs

@@ -488,9 +488,7 @@ impl BlockChain {
 			hash: hash,
 			number: number,
 			total_difficulty: total_difficulty,
-			location: match is_new_best {
-				false => BlockLocation::Branch,
-				true => {
+			location: if is_new_best {
 				// on new best block we need to make sure that all ancestors
 				// are moved to "canon chain"
 				// find the route between old best block and the new one
@@ -506,7 +504,8 @@ impl BlockChain {
 						route: route.blocks.into_iter().skip(route.index).collect()
 					}
 				}
-				}
+			} else {
+				BlockLocation::Branch
 			}
 		}
 	}