downgrade these warnings to info

quartz doesn't impl them either, so presumably its not too bad to
not have them. Can't see anything visually ugly at the moment
to warrant the effort.

Change-Id: Ibf6119f549ab6712d3f1aca18e2cdab905f00030

vcl/headless/svpgdi.cxx

@@ -964,7 +964,7 @@ bool SvpSalGraphics::drawPolyLineBezier( sal_uInt32,
                                          const SalPoint*,
                                          const sal_uInt8* )
 {
-    SAL_WARN("vcl.gdi", "unsupported SvpSalGraphics::drawPolyLineBezier case");
+    SAL_INFO("vcl.gdi", "unsupported SvpSalGraphics::drawPolyLineBezier case");
     return false;
 }
 
@@ -972,7 +972,7 @@ bool SvpSalGraphics::drawPolygonBezier( sal_uInt32,
                                         const SalPoint*,
                                         const sal_uInt8* )
 {
-    SAL_WARN("vcl.gdi", "unsupported SvpSalGraphics::drawPolygonBezier case");
+    SAL_INFO("vcl.gdi", "unsupported SvpSalGraphics::drawPolygonBezier case");
     return false;
 }
 
@@ -981,7 +981,7 @@ bool SvpSalGraphics::drawPolyPolygonBezier( sal_uInt32,
                                             const SalPoint* const*,
                                             const sal_uInt8* const* )
 {
-    SAL_WARN("vcl.gdi", "unsupported SvpSalGraphics::drawPolyPolygonBezier case");
+    SAL_INFO("vcl.gdi", "unsupported SvpSalGraphics::drawPolyPolygonBezier case");
     return false;
 }