[Form] Removed depracted events PRE_BIND, BIND and POST_BIND

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | yes
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | ~
| License       | MIT
| Doc PR        | ~
This test should not be removed. It should simply use the new constant (and changing the constant being used should be done in older branches actually)