Globally ignore attribute warnings on Wine side

These started happening after Wine 5.12, and it doesn't look like it's
going to change.

src/wine-host/bridges/clap.h

@@ -110,17 +110,11 @@ struct ClapPluginInstance {
      */
     std::optional<Editor> editor;
 
-    // FIXME: This emits `-Wignored-attributes` as of Wine 5.22
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wignored-attributes"
-
     /**
      * The plugin object. The plugin gets destroyed together with this struct.
      */
     std::unique_ptr<const clap_plugin, decltype(clap_plugin::destroy)> plugin;
 
-#pragma GCC diagnostic pop
-
     /**
      * Contains the plugin's supported extensions. Initialized after the host
      * calls `clap_plugin::init()`.
@@ -357,18 +351,12 @@ class ClapBridge : public HostBridge {
      */
     Configuration config_;
 
-    // FIXME: This emits `-Wignored-attributes` as of Wine 5.22
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wignored-attributes"
-
     /**
      * The shared library handle of the CLAP plugin.
      */
     std::unique_ptr<std::remove_pointer_t<HMODULE>, decltype(&FreeLibrary)>
         plugin_handle_;
 
-#pragma GCC diagnostic pop
-
     /**
      * The windows CLAP plugin's entry point. Initialized in the constructor,
      * and deinitialized again when the entry point gets dropped.

src/wine-host/bridges/vst2.h

@@ -183,18 +183,12 @@ class Vst2Bridge : public HostBridge {
      */
     ScopedValueCache<int> process_level_cache_;
 
-    // FIXME: This emits `-Wignored-attributes` as of Wine 5.22
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wignored-attributes"
-
     /**
      * The shared library handle of the VST2 plugin.
      */
     std::unique_ptr<std::remove_pointer_t<HMODULE>, decltype(&FreeLibrary)>
         plugin_handle_;
 
-#pragma GCC diagnostic pop
-
     /**
      * The loaded plugin's `AEffect` struct, obtained using the above library
      * handle.