Remove a double linefeed

core/src/test/java/nl/tudelft/ewi/auta/core/controller/SubmissionExportControllerTest.java

@@ -148,7 +148,6 @@ public class SubmissionExportControllerTest {
         doReturn(Optional.of(this.ident1))
                 .when(this.repositories.getIdentityRepository()).findById(eq(ROGUE_SID));
 
-
         when(this.mongoTemplate.stream(any(Query.class), eq(IdentityContainer.class)))
                 .thenReturn(new CloseableIteratorAdaptor<>(
                         List.of(this.ident1, this.rogueIdent).iterator()