docs: drop code references to local plan files

tests/Controller/Api/ApplicationFormControllerTest.php

@@ -13,8 +13,8 @@ use Symfony\Bundle\FrameworkBundle\Test\WebTestCase;
 use Symfony\Component\HttpFoundation\Response;
 
 /**
- * The cases here are the ones the TYPO3 side actually produces
- * (.ddev/plans/MYEP-APPLICATION-ENDPOINT.md §8): labels with slashes and umlauts, a long textarea
+ * The cases here are the ones the TYPO3 side actually produces:
+ * labels with slashes and umlauts, a long textarea
  * answer, a duplicate label, and a mapped key this application does not know - which must not be a
  * 400, or a later mapping change on the website silently stops every submission of that form.
  *
@@ -22,8 +22,7 @@ use Symfony\Component\HttpFoundation\Response;
  * birthDate, email, gender, eu, street, zipCode and city, and every one of them is a 400 when it is
  * missing. That is
  * deliberately harsh - a 400 costs a whole application - and each rejection case is pinned here
- * one field at a time, because these are the fields a teamer cannot be provisioned without
- * (.ddev/plans/application-form-teamer-provisioning.md).
+ * one field at a time, because these are the fields a teamer cannot be provisioned without.
  */
 class ApplicationFormControllerTest extends WebTestCase
 {
@@ -412,7 +411,7 @@ class ApplicationFormControllerTest extends WebTestCase
 
     /**
      * A duplicate label is disambiguated by the identifier on the TYPO3 side, so both answers
-     * survive as separate keys (§3.3). The order is MySQL's, not the form's - a json column
+     * survive as separate keys. The order is MySQL's, not the form's - a json column
      * sorts an object's keys by length - so only the set of labels is pinned here.
      */
     public function testEveryLabelSurvivesIncludingADisambiguatedDuplicate(): void
@@ -528,7 +527,7 @@ class ApplicationFormControllerTest extends WebTestCase
     }
 
     /**
-     * §5.1 is not implemented yet: a double-clicked submit button stores two rows for now, and
+     * Dedupe is not implemented yet: a double-clicked submit button stores two rows for now, and
      * this pins that it is a known state rather than an accident.
      */
     public function testTheSamePayloadTwiceIsStoredTwiceForNow(): void