Take your code coverage seriously.
Every line of code should serve a legitimate purpose. The code should either service the business logic as the implementation or demonstrate examples through tests.
In the quest to achieve 100% code coverage or to satisfy a code coverage tool, you need to ensure that all the tests serve a purpose. Never use dummy code to increase code coverage.
If code doesn’t belong, delete it. Any unnecessary code will only cause problems later.
Avoid any temptation to cheat the tools by adding fake tests. If you feel the need to cheat, you’re doing it wrong and should just go home.