extensions tslint cleanup/Connection config refactor (#4370)

* various clean ups

* formatting

* remove linting

* formatting

* IConfigurationService is even better

* messing with connection config tests

* update tests

* formatting

* foramtting

* remove unused code

* add more tests

src/sql/platform/connection/common/connectionManagementInfo.ts

@@ -70,4 +70,4 @@ export class ConnectionManagementInfo {
 	 * Owner uri assigned to the connection
 	 */
 	public ownerUri: string;
-}
+}