Corrected doxygen comment

Core/Samples/inc/ISample.h

@@ -39,13 +39,11 @@ public:
 
     virtual ISample *clone() const =0;
 
-    //! @{ @internal
     //! Returns a clone with inverted magnetic fields
     virtual ISample *cloneInvertB() const;
 
-    //! \internal Calls the ISampleVisitor's visit method
+    //! Calls the ISampleVisitor's visit method
     virtual void accept(ISampleVisitor *p_visitor) const = 0;
-    //! @}
 
     //! Returns an ISimulation if DWBA is required.
     virtual DWBASimulation *createDWBASimulation() const { return 0; }