Removed --disable-print-preview switch and policy.

chrome/common/chrome_switches.cc

Index: chrome/common/chrome_switches.cc
diff --git a/chrome/common/chrome_switches.cc b/chrome/common/chrome_switches.cc
index 913dec8a66d7610c416f869480e35ca8f9dcdc63..53a9cd59f1c8127b2b8cb4acc088ce4c024905c6 100644
--- a/chrome/common/chrome_switches.cc
+++ b/chrome/common/chrome_switches.cc
@@ -315,9 +315,6 @@ const char kDisablePreconnect[]             = "disable-preconnect";
 const char kDisablePrerenderLocalPredictor[] =
     "disable-prerender-local-predictor";
 
-// Disables print preview (For testing, and for users who don't like us. :[ )
-const char kDisablePrintPreview[]           = "disable-print-preview";
-
 // Normally when the user attempts to navigate to a page that was the result of
 // a post we prompt to make sure they want to. This switch may be used to
 // disable that check. This switch is used during automated testing.