drive: Remove --enable-drive-v2-api from about:flags

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 207dce89ecb873abb8c3141581f8541caf78142f..12d505c69d9740319344471146597eb547b7b792 100644
--- a/chrome/common/chrome_switches.cc
+++ b/chrome/common/chrome_switches.cc
@@ -509,9 +509,6 @@ const char kEnableDevToolsExperiments[]     = "enable-devtools-experiments";
 // Enables experimental discovery slots in New Tab page.
 const char kEnableDiscoveryInNewTabPage[]   = "enable-discovery-ntp";
 
-// Enables Drive v2 API instead of Google Documents List API.
-const char kEnableDriveV2Api[]              = "enable-drive-v2-api";
-
 // Enables extensions to be easily installed from sites other than the web
 // store. Without this flag, they can still be installed, but must be manually
 // dragged onto chrome://extensions/.