Change #include <cairo-svg.h> to <cairo.h>

Since we don't need cairo's svg feature, and we build internal cairo
with --disable-svg. Also remove commented-out codes which use svg.

Change-Id: I5a8e8c672588bb6eca28696f21221770972ec3d3
Reviewed-on: https://gerrit.libreoffice.org/23456Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Michael Stahl <mstahl@redhat.com>

vcl/unx/generic/gdi/openglx11cairotextrender.cxx

@@ -13,7 +13,7 @@
 #include "salbmp.hxx"
 #include <vcl/salbtype.hxx>
 
-#include <cairo-svg.h>
+#include <cairo.h>
 
 OpenGLX11CairoTextRender::OpenGLX11CairoTextRender(X11SalGraphics& rParent)
     : X11CairoTextRender(rParent)
@@ -22,9 +22,6 @@ OpenGLX11CairoTextRender::OpenGLX11CairoTextRender(X11SalGraphics& rParent)
 
 cairo_t* OpenGLX11CairoTextRender::getCairoContext()
 {
-    // static size_t id = 0;
-    // OString aFileName = OString("/tmp/libo_logs/text_rendering") + OString::number(id++) + OString(".svg");
-    // cairo_surface_t* surface = cairo_svg_surface_create(aFileName.getStr(), GetWidth(), GetHeight());
     cairo_surface_t* surface = nullptr;
     OpenGLSalGraphicsImpl *pImpl = dynamic_cast< OpenGLSalGraphicsImpl* >(mrParent.GetImpl());
     if( pImpl )