Remove kEnablePrintPreview now that the pdf plugin is part of Chromium.

chrome/test/data/webui/print_preview.cc

Index: chrome/test/data/webui/print_preview.cc
===================================================================
--- chrome/test/data/webui/print_preview.cc	(revision 271915)
+++ chrome/test/data/webui/print_preview.cc	(working copy)
@@ -4,17 +4,6 @@
 
 #include "chrome/test/data/webui/print_preview.h"
 
-#include "base/command_line.h"
-#include "chrome/common/chrome_switches.h"
-
 PrintPreviewWebUITest::PrintPreviewWebUITest() {}
 
 PrintPreviewWebUITest::~PrintPreviewWebUITest() {}
-
-// Always print preview for testing.
-void PrintPreviewWebUITest::SetUpCommandLine(CommandLine* command_line) {
-  WebUIBrowserTest::SetUpCommandLine(command_line);
-#if !defined(GOOGLE_CHROME_BUILD)
-  command_line->AppendSwitch(switches::kEnablePrintPreview);
-#endif
-}