nothing used the list theme info method.

anything that wanted a list of all themes did not want just plugin info
but also the paths, etc. which made this method useless

it may be worthwhile to have a "find all theme paths" replacement

plasma/theme.cpp

@@ -43,7 +43,6 @@
 #include <kmanagerselection.h>
 #include <kimagecache.h>
 #include <ksharedconfig.h>
-#include <kstandarddirs.h>
 #include <kwindoweffects.h>
 #include <kwindowsystem.h>
 #include <qstandardpaths.h>
@@ -510,12 +509,6 @@ Theme::~Theme()
     delete d;
 }
 
-KPluginInfo::List Theme::listThemeInfo()
-{
-    const QStringList themes = KGlobal::dirs()->findAllResources("data", "desktoptheme/*/metadata.desktop", KStandardDirs::NoDuplicates);
-    return KPluginInfo::fromFiles(themes);
-}
-
 void ThemePrivate::settingsFileChanged(const QString &file)
 {
     if (file.endsWith(themeRcFile)) {

plasma/theme.h

@@ -104,12 +104,6 @@ class PLASMA_EXPORT Theme : public QObject
 
         ~Theme();
 
-        /**
-         * @return a list of all known themes
-         * @since 4.3
-         */
-        static KPluginInfo::List listThemeInfo();
-
         /**
          * Sets the current theme being used.
          */