remove unused constructor parameter

Change-Id: Ia2d1a8d7d43ceac36b6bce87f5a733d6bce3bd6f

include/vcl/image.hxx

@@ -83,9 +83,8 @@ class VCL_DLLPUBLIC ImageList
 public:
                     explicit ImageList( sal_uInt16 nInit = 8, sal_uInt16 nGrow = 4 );
                     explicit ImageList( const ResId& rResId );
-                    ImageList( const ::std::vector< OUString >& rNameVector,
-                               const OUString& rPrefix,
-                               const Color* pMaskColor = nullptr );
+                    ImageList( const std::vector<OUString>& rNameVector,
+                               const OUString& rPrefix);
                     ImageList( const ImageList& rImageList );
                     ~ImageList();
 

vcl/source/image/ImageList.cxx

@@ -93,8 +93,7 @@ ImageList::ImageList( const ResId& rResId ) :
 }
 
 ImageList::ImageList( const ::std::vector< OUString >& rNameVector,
-                      const OUString& rPrefix,
-                      const Color* ) :
+                      const OUString& rPrefix) :
     mpImplData( nullptr ),
     mnInitSize( 1 ),
     mnGrowSize( 4 )