Move SHAPE_ARC to EDA_ANGLE.

include/plotters/plotter.h

@@ -222,7 +222,6 @@ public:
      */
     virtual void Arc( const VECTOR2I& centre, double StAngle, double EndAngle, int rayon,
                       FILL_T fill, int width = USE_DEFAULT_LINE_WIDTH );
-    virtual void Arc(  const SHAPE_ARC& aArc );
 
     /**
      * Generic fallback: Cubic Bezier curve rendered as a polyline

include/plotters/plotter_gerber.h

@@ -72,8 +72,6 @@ public:
     virtual void Arc( const VECTOR2I& aCenter, double aStAngle, double aEndAngle, int aRadius,
                       FILL_T aFill, int aWidth = USE_DEFAULT_LINE_WIDTH ) override;
 
-    virtual void Arc( const SHAPE_ARC& aArc ) override;
-
     // These functions plot an item and manage X2 gerber attributes
     virtual void ThickSegment( const VECTOR2I& start, const VECTOR2I& end, int width,
                                OUTLINE_MODE tracemode, void* aData ) override;