Fix PR comments

Author: SBiOSoftWhare

MatrixSDKTests/MXCoreDataRoomListDataManagerUnitTests.swift

@@ -199,13 +199,13 @@ class MXCoreDataRoomListDataManagerUnitTests: XCTestCase {
 
         for (index, numberOfRooms) in numberOfRoomsPerType.enumerated() {
             let safeIndex = index % MXRoomSummaryDataTypes.all.count
-            let typed = (0..<numberOfRooms).map({ _ -> MockRoomSummary in
+            let typed = (0..<numberOfRooms).map({ _ in
                 return MockRoomSummary.generate(withTypes: MXRoomSummaryDataTypes.all[safeIndex])
             })
             result.append(contentsOf: typed)
         }
 
-        let untyped = (0..<numberOfUntyped).map({ _ -> MockRoomSummary in
+        let untyped = (0..<numberOfUntyped).map({ _ in
             return MockRoomSummary.generate()
         })
         result.append(contentsOf: untyped)