Remove examples everywhere

.github/pull_request_template.md

@@ -29,6 +29,6 @@ Please add a `x` inside each checkbox:
 - [ ] I have read the [contribution guidelines](../blob/main/CONTRIBUTING.md).
 - [ ] I have added tests (we are enforcing 100% test coverage).
 - [ ] I have added documentation in the `README.md`, the `docs` directory (if
- any) and the `examples` directory (if any).
+ any)
 - [ ] The status checks are successful (continuous integration). Those can be
  seen below.

CONTRIBUTING.md

@@ -55,6 +55,5 @@ in all of these:
 
 - the `README.md`
 - the `docs` directory (if any)
-- the `examples` directory (if any)
 
 Please use the same style as the rest of the documentation and examples.