this drawAlphaBitmap variant is unused

Change-Id: Id2f9073969babe7ad5984f87949ed870f9d5a8f7

vcl/inc/openglgdiimpl.hxx

@@ -293,11 +293,6 @@ public:
                 const SalBitmap& rSourceBitmap,
                 const SalBitmap& rAlphaBitmap ) SAL_OVERRIDE;
 
-    /** Render 32-bits bitmap with alpha channel */
-    virtual bool drawAlphaBitmap(
-                const SalTwoRect&,
-                const SalBitmap& rBitmap ) SAL_OVERRIDE;
-
     /** draw transformed bitmap (maybe with alpha) where Null, X, Y define the coordinate system */
     virtual bool drawTransformedBitmap(
                 const basegfx::B2DPoint& rNull,

vcl/inc/salgdiimpl.hxx

@@ -193,11 +193,6 @@ public:
                 const SalBitmap& rSourceBitmap,
                 const SalBitmap& rAlphaBitmap ) = 0;
 
-    /** Render 32-bits bitmap with alpha channel */
-    virtual bool drawAlphaBitmap(
-                const SalTwoRect&,
-                const SalBitmap& rBitmap ) = 0;
-
     /** draw transformed bitmap (maybe with alpha) where Null, X, Y define the coordinate system */
     virtual bool drawTransformedBitmap(
                 const basegfx::B2DPoint& rNull,

vcl/opengl/gdiimpl.cxx

@@ -1662,22 +1662,6 @@ bool OpenGLSalGraphicsImpl::drawAlphaBitmap(
     return true;
 }
 
-bool OpenGLSalGraphicsImpl::drawAlphaBitmap(
-            const SalTwoRect& rPosAry,
-            const SalBitmap& rSalBitmap )
-{
-    const OpenGLSalBitmap& rBitmap = static_cast<const OpenGLSalBitmap&>(rSalBitmap);
-    OpenGLTexture& rTexture( rBitmap.GetTexture() );
-
-    SAL_INFO( "vcl.opengl", "::drawAlphaBitmap" );
-    PreDraw();
-    DrawAlphaTexture( rTexture, rPosAry );
-    PostDraw();
-
-    CHECK_GL_ERROR();
-    return true;
-}
-
 /** draw transformed bitmap (maybe with alpha) where Null, X, Y define the coordinate system */
 bool OpenGLSalGraphicsImpl::drawTransformedBitmap(
             const basegfx::B2DPoint& rNull,

vcl/unx/generic/gdi/gdiimpl.cxx

@@ -950,12 +950,6 @@ bool X11SalGraphicsImpl::drawAlphaBitmap( const SalTwoRect& rTR,
     return true;
 }
 
-bool X11SalGraphicsImpl::drawAlphaBitmap( const SalTwoRect& /*rTR*/,
-    const SalBitmap& /*rBitmap*/ )
-{
-    return false;
-}
-
 bool X11SalGraphicsImpl::drawTransformedBitmap(
     const basegfx::B2DPoint& rNull,
     const basegfx::B2DPoint& rX,

vcl/unx/generic/gdi/gdiimpl.hxx

@@ -254,10 +254,6 @@ public:
                 const SalBitmap& rSourceBitmap,
                 const SalBitmap& rAlphaBitmap ) SAL_OVERRIDE;
 
-    virtual bool drawAlphaBitmap(
-                const SalTwoRect&,
-                const SalBitmap& rBitmap ) SAL_OVERRIDE;
-
     /** draw transformed bitmap (maybe with alpha) where Null, X, Y define the coordinate system */
     virtual bool drawTransformedBitmap(
                 const basegfx::B2DPoint& rNull,

vcl/win/source/gdi/gdiimpl.hxx

@@ -201,11 +201,6 @@ public:
                 const SalBitmap& rSourceBitmap,
                 const SalBitmap& rAlphaBitmap ) SAL_OVERRIDE;
 
-    /** Render 32-bits bitmap with alpha channel */
-    virtual bool drawAlphaBitmap(
-                const SalTwoRect&,
-                const SalBitmap& ) SAL_OVERRIDE {return false;}
-
     /** draw transformed bitmap (maybe with alpha) where Null, X, Y define the coordinate system */
     virtual bool drawTransformedBitmap(
                 const basegfx::B2DPoint& rNull,