Make the watchdog much more aggressive

For individually hosted plugins this will behave the same. For plugin
groups it would have been nice if we could shut down individual plugins,
but dangling threads are apparently a real issue. This should be
equivalent in all use cases.

This also reverts commit bda9a0b75f.

src/wine-host/bridges/common.cpp

@@ -52,6 +52,16 @@ void HostBridge::shutdown_if_dangling() {
                   << std::endl;
         std::cerr << "         This bridge will shut down now." << std::endl;
 
-        close_sockets();
+        // FIXME: Closing the sockets should work fine, but it still leaves some
+        //        background threads hanging around. For now we'll just
+        //        terminate the entire process instead since we'll probably be
+        //        left in a bad state anyways. The only thing this could
+        //        potentially break would be sharing a plugin group across two
+        //        different DAWs, but you really shouldn't be doing that. :D
+        //
+        //        Check this commit for another now-unnecessary change we
+        //        reverted here.
+        // close_sockets();
+        TerminateProcess(GetCurrentProcess(), 0);
     }
 }