slight change to how we declare our qHash overload for CValueObject,

which fixes some include order dependency shenanigans when compiling with GCC,
which was caused by the requirement to overload qHash for CCollection
and the way qHash interacts with the dreaded two-phase lookup for C++ templates

refs #81

src/blackmisc/valueobject.cpp

@@ -175,8 +175,3 @@ namespace BlackMisc
         return argument;
     }
 }
-
-uint qHash(const BlackMisc::CValueObject &value)
-{
-    return value.getValueHash();
-}