no need to test that the pointer is non-NULL before deleting it (closes #10070)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@56269 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/osx/core/printmac.cpp

@@ -411,8 +411,7 @@ bool wxMacPrinter::Print(wxWindow *parent, wxPrintout *printout, bool prompt)
     // May have pressed cancel.
     if (!dc || !dc->IsOk())
     {
-        if (dc)
-            delete dc;
+        delete dc;
         return false;
     }