XWIKI-12943: Remove remaining ambiguity from Locale/language related api.* script APIs

...i-platform-oldcore/src/main/java/com/xpn/xwiki/XWiki.java

...form-oldcore/src/main/java/com/xpn/xwiki/api/Context.java

...core/src/main/java/com/xpn/xwiki/api/DeletedDocument.java

...orm-oldcore/src/main/java/com/xpn/xwiki/api/Document.java

...atform-oldcore/src/main/java/com/xpn/xwiki/api/XWiki.java

...src/main/java/com/xpn/xwiki/doc/XWikiDeletedDocument.java

...ldcore/src/main/java/com/xpn/xwiki/doc/XWikiDocument.java