[5.1] Complete com_search deprecation #40727

[jgerman-bot]

New language relevant PR in upstream repo: https://github.com/joomla/joomla-cms/pull/42891 Here are the upstream changes:

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```diff diff --git a/administrator/language/en-GB/localise.php b/administrator/language/en-GB/localise.php index 4da06e5bb84e..e38f4aaeac8b 100644 --- a/administrator/language/en-GB/localise.php +++ b/administrator/language/en-GB/localise.php @@ -50,6 +50,8 @@ public static function getPluralSuffixes($count) * @return array An array of ignored search words. * * @since 1.6 + * + * @deprecated 5.1 will be removed in 7.0 without replacement */ public static function getIgnoredSearchWords() { @@ -62,6 +64,8 @@ public static function getIgnoredSearchWords() * @return integer The lower length limit of search words. * * @since 1.6 + * + * @deprecated 5.1 will be removed in 7.0 without replacement */ public static function getLowerLimitSearchWord() { @@ -74,6 +78,8 @@ public static function getLowerLimitSearchWord() * @return integer The upper length limit of search words. * * @since 1.6 + * + * @deprecated 5.1 will be removed in 7.0 without replacement */ public static function getUpperLimitSearchWord() { @@ -86,6 +92,8 @@ public static function getUpperLimitSearchWord() * @return integer The number of chars to display when searching. * * @since 1.6 + * + * @deprecated 5.1 will be removed in 7.0 without replacement */ public static function getSearchDisplayedCharactersNumber() { ```