revert: 移除find_plugin

@zzyyyl

link to 48a9c81e8c

src/MaaCore/Task/AbstractTask.h

@@ -55,17 +55,6 @@ namespace asst
             m_plugins.emplace_back(plugin);
         }
 
-        template <typename PluginType>
-        requires std::derived_from<PluginType, AbstractTaskPlugin>
-        std::shared_ptr<PluginType> find_plugin() const
-        {
-            for (const auto& plugin : m_plugins) {
-                if (auto ptr = std::dynamic_pointer_cast<PluginType>(plugin)) {
-                    return ptr;
-                }
-            }
-            return nullptr;
-        }
         void clear_plugin() noexcept;
 
         bool get_enable() const noexcept { return m_enable; }