Merge "Remove deprecated hook EditPageBeforeEditChecks"

diff --combined includes/EditPage.php
index 581a28f,a484e40..644b625
--- 1/includes/EditPage.php
--- 2/includes/EditPage.php
+++ b/includes/EditPage.php
@@@ -2812,7 -2812,7 +2812,7 @@@ ERROR
                        $this->autoSumm = md5( '' );
                }
  
 -              $autosumm = $this->autoSumm ? $this->autoSumm : md5( $this->summary );
 +              $autosumm = $this->autoSumm ?: md5( $this->summary );
                $out->addHTML( Html::hidden( 'wpAutoSummary', $autosumm ) );
  
                $out->addHTML( Html::hidden( 'oldid', $this->oldid ) );
@@@ -4226,28 -4226,6 +4226,6 @@@
                        );
                }
  
-               // Backwards-compatibility hack to run the EditPageBeforeEditChecks hook. It's important,
-               // people have used it for the weirdest things completely unrelated to checkboxes...
-               // And if we're gonna run it, might as well allow its legacy checkboxes to be shown.
-               $legacyCheckboxes = [];
-               if ( !$this->isNew ) {
-                       $legacyCheckboxes['minor'] = '';
-               }
-               $legacyCheckboxes['watch'] = '';
-               // Copy new-style checkboxes into an old-style structure
-               foreach ( $checkboxes as $name => $oouiLayout ) {
-                       $legacyCheckboxes[$name] = (string)$oouiLayout;
-               }
-               // Avoid PHP 7.1 warning of passing $this by reference
-               $ep = $this;
-               Hooks::run( 'EditPageBeforeEditChecks', [ &$ep, &$legacyCheckboxes, &$tabindex ], '1.29' );
-               // Copy back any additional old-style checkboxes into the new-style structure
-               foreach ( $legacyCheckboxes as $name => $html ) {
-                       if ( $html && !isset( $checkboxes[$name] ) ) {
-                               $checkboxes[$name] = new OOUI\Widget( [ 'content' => new OOUI\HtmlSnippet( $html ) ] );
-                       }
-               }
- 
                return $checkboxes;
        }