[[unlikely]] ASSERT

and other ASSERT usage changes

Source/Core/DolphinQt/CheatSearchWidget.cpp

@@ -3,7 +3,6 @@
 
 #include "DolphinQt/CheatSearchWidget.h"
 
-#include <cassert>
 #include <functional>
 #include <optional>
 #include <string>

Source/Core/DolphinQt/GCMemcardManager.cpp

@@ -401,7 +401,7 @@ static QString GetFormatDescription(Memcard::SavefileFormat format)
   case Memcard::SavefileFormat::SAV:
     return QObject::tr("Datel MaxDrive/Pro files");
   default:
-    ASSERT(0);
+    ASSERT(false);
     return QObject::tr("Native GCI File");
   }
 }