Remove wrong @return from doc blocks

These functions actually does not return anything, so the @return is
wrong here. '@return void' is ignored.

Change-Id: I11495ee05b943c16c1c4715d617c8b50de22276c

includes/Block.php

@@ -596,7 +596,6 @@ class Block {
 	 *
 	 * @param Block $block
 	 * @param array &$blockIds
-	 * @return array Block IDs of retroactive autoblocks made
 	 */
 	protected static function defaultRetroactiveAutoblock( Block $block, array &$blockIds ) {
 		global $wgPutIPinRC;

includes/EditPage.php

@@ -2758,7 +2758,6 @@ class EditPage {
 	 *   up top, or false if this is the comment summary
 	 *   down below the textarea
 	 * @param string $summary The text of the summary to display
-	 * @return string
 	 */
 	protected function showSummaryInput( $isSubjectPreview, $summary = "" ) {
 		global $wgOut, $wgContLang;

includes/Import.php

@@ -1494,9 +1494,6 @@ class WikiRevision {
 		return true;
 	}
 
-	/**
-	 * @return mixed
-	 */
 	function importLogItem() {
 		$dbw = wfGetDB( DB_MASTER );
 		# @todo FIXME: This will not record autoblocks

includes/db/DatabaseMysqlBase.php

@@ -901,7 +901,6 @@ abstract class DatabaseMysqlBase extends DatabaseBase {
 
 	/**
 	 * @param bool $value
-	 * @return null|bool|ResultWrapper
 	 */
 	public function setBigSelects( $value = true ) {
 		if ( $value === 'default' ) {

includes/debug/MWDebug.php

@@ -182,7 +182,6 @@ class MWDebug {
 	 * @param int $callerOffset How far up the callstack is the original
 	 *    caller. 2 = function that called the function that called
 	 *    MWDebug::deprecated() (Added in 1.20).
-	 * @return mixed
 	 */
 	public static function deprecated( $function, $version = false,
 		$component = false, $callerOffset = 2

includes/specials/SpecialNewpages.php

@@ -117,7 +117,6 @@ class SpecialNewpages extends IncludableSpecialPage {
 	 * Show a form for filtering namespace and username
 	 *
 	 * @param string $par
-	 * @return string
 	 */
 	public function execute( $par ) {
 		$out = $this->getOutput();

maintenance/checkSyntax.php

@@ -345,7 +345,6 @@ class CheckSyntax extends Maintenance {
 	 * or pointless ?> closing tags at the end.
 	 *
 	 * @param string $file String Path to a file to check for errors
-	 * @return bool
 	 */
 	private function checkForMistakes( $file ) {
 		foreach ( $this->mNoStyleCheckPaths as $regex ) {