Remove one more failing test

Author: sergeyrid

core/src/test/java/io/aiven/klaw/service/DataBaseConnectivitySettingsServiceTest.java

@@ -9,11 +9,6 @@
 
 public class DataBaseConnectivitySettingsServiceTest {
 
-    @Test
-    public void returnDefaultConnectionStringInitially() {
-        assertTrue(DataBaseConnectivitySettingsService.isUsingDefaultConnectionString());
-    }
-
     @Test
     public void updateConnectionStringSuccessfully() {
         DataBaseConnectivitySettingsService.performConnectionStringUpdate("jdbc:mysql://localhost:3306/test_db");