Revert "Preserve lone breaks in projects description"

This reverts commit 87e0a26d24.

src/applications/project/customfield/PhabricatorProjectDescriptionField.php

@@ -3,22 +3,6 @@
 final class PhabricatorProjectDescriptionField
   extends PhabricatorProjectStandardCustomField {
 
-  public function renderPropertyViewValue(array $handles) {
-    $value = $this->getProxy()->getFieldValue();
-
-    if (!strlen($value)) {
-      return null;
-    }
-
-    $viewer = $this->getViewer();
-    return PhabricatorMarkupEngine::renderOneObject(
-      id(new PhabricatorMarkupOneOff())
-         ->setContent($value)
-         ->setPreserveLineBreaks(true),
-      'default',
-      $viewer);
-  }
-
   public function createFields($object) {
     return PhabricatorStandardCustomField::buildStandardFields(
       $this,