purge dead code

apps/lib/katepluginmanager.cpp

@@ -305,11 +305,6 @@ KTextEditor::Plugin *KatePluginManager::plugin(const QString &name)
     return (it == m_name2Plugin.end()) ? nullptr : it.value()->plugin;
 }
 
-bool KatePluginManager::pluginAvailable(const QString &name)
-{
-    return m_name2Plugin.contains(name);
-}
-
 class KTextEditor::Plugin *KatePluginManager::loadPlugin(const QString &name, bool permanent)
 {
     /**

apps/lib/katepluginmanager.h

@@ -66,7 +66,6 @@ public:
     }
 
     KTextEditor::Plugin *plugin(const QString &name);
-    bool pluginAvailable(const QString &name);
 
     KTextEditor::Plugin *loadPlugin(const QString &name, bool permanent = true);
     void unloadPlugin(const QString &name, bool permanent = true);