remove unused Link<> field

Change-Id: I0424284b2436bbc7578a2ee9086704409ee014af

formula/source/ui/dlg/ControlHelper.hxx

@@ -88,7 +88,6 @@ class ArgInput
 {
 private:
     Link<ArgInput&,void>          aFxClickLink;
-    Link<>          aRefClickLink;
     Link<>          aFxFocusLink;
     Link<>          aRefFocusLink;
     Link<>          aEdFocusLink;
@@ -100,7 +99,6 @@ private:
     VclPtr<RefButton>      pRefBtn;
 
     DECL_LINK_TYPED( FxBtnClickHdl, Button*, void );
-    DECL_LINK_TYPED( RefBtnClickHdl,Button*, void );
     DECL_LINK(  FxBtnFocusHdl, ImageButton* );
     DECL_LINK(  RefBtnFocusHdl,RefButton* );
     DECL_LINK(  EdFocusHdl, ArgEdit* );
@@ -109,7 +107,6 @@ private:
 protected:
 
     void    FxClick();
-    void    RefClick();
     void    FxFocus();
     void    RefFocus();
     void    EdFocus();

formula/source/ui/dlg/funcutl.cxx

@@ -167,7 +167,6 @@ void ArgInput::InitArgInput( FixedText* pftArg, PushButton* pbtnFx,
     }
     if(pRefBtn!=nullptr)
     {
-        pRefBtn->SetClickHdl   ( LINK( this, ArgInput, RefBtnClickHdl ) );
         pRefBtn->SetGetFocusHdl( LINK( this, ArgInput, RefBtnFocusHdl ) );
     }
     if(pEdArg!=nullptr)
@@ -269,11 +268,6 @@ void ArgInput::FxClick()
     aFxClickLink.Call(*this);
 }
 
-void ArgInput::RefClick()
-{
-    aRefClickLink.Call(this);
-}
-
 void ArgInput::FxFocus()
 {
     aFxFocusLink.Call(this);
@@ -300,12 +294,6 @@ IMPL_LINK_TYPED( ArgInput, FxBtnClickHdl, Button*, pBtn, void )
         FxClick();
 }
 
-IMPL_LINK_TYPED( ArgInput, RefBtnClickHdl, Button*, pBtn, void )
-{
-    if(pRefBtn == pBtn)
-        RefClick();
-}
-
 IMPL_LINK( ArgInput, FxBtnFocusHdl, ImageButton*, pBtn )
 {
     if(pBtn == pBtnFx)