Fix the missing code generation for Introspect interface,

if the interface is defined in the XML file.

Signed-off-by: Slávek Banko <slavek.banko@axis.cz>

src/tools/dbusxml2qt3/main.cpp

@@ -119,10 +119,7 @@ int main(int argc, char** argv)
                     {
                         hasIntrospectable = true;
                     }
-                    else
+                    interfaces << classData;
-                    {
-                        interfaces << classData;
-                    }
                 }
             }
         }