HotkeyScheduler: Handle Wii Remote connections independently

Allow connecting or disconnecting multiple Wii Remotes simultaneously
instead of only handling the highest index whose hotkey is pressed. This
allows using a single hotkey to toggle multiple remotes.

Source/Core/DolphinQt/HotkeyScheduler.cpp

@@ -277,20 +277,16 @@ void HotkeyScheduler::Run()
 
       if (Core::System::GetInstance().IsWii())
       {
-        int wiimote_id = -1;
         if (IsHotkey(HK_WIIMOTE1_CONNECT))
-          wiimote_id = 0;
+          emit ConnectWiiRemote(0);
         if (IsHotkey(HK_WIIMOTE2_CONNECT))
-          wiimote_id = 1;
+          emit ConnectWiiRemote(1);
         if (IsHotkey(HK_WIIMOTE3_CONNECT))
-          wiimote_id = 2;
+          emit ConnectWiiRemote(2);
         if (IsHotkey(HK_WIIMOTE4_CONNECT))
-          wiimote_id = 3;
+          emit ConnectWiiRemote(3);
         if (IsHotkey(HK_BALANCEBOARD_CONNECT))
-          wiimote_id = 4;
-
-        if (wiimote_id > -1)
-          emit ConnectWiiRemote(wiimote_id);
+          emit ConnectWiiRemote(4);
 
         if (IsHotkey(HK_TOGGLE_SD_CARD))
           Settings::Instance().SetSDCardInserted(!Settings::Instance().IsSDCardInserted());