Remove implementation of Panels on OSes other than ChromeOS.

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 c3c42bd7c3d9ed0cf5d809dcc7950603ec65f04f..90d3fdd58cd50aea32693c181997a5dc618881cd 100644
--- a/chrome/common/chrome_switches.cc
+++ b/chrome/common/chrome_switches.cc
@@ -255,9 +255,6 @@ const char kDisableOfflineAutoReloadVisibleOnly[] =
 // Disable out-of-process V8 proxy resolver.
 const char kDisableOutOfProcessPac[]        = "disable-out-of-process-pac";
 
-// Disables panels (always on-top docked pop-up windows).
-const char kDisablePanels[]                 = "disable-panels";
-
 // Disables permission action reporting to Safe Browsing servers for opted in
 // users.
 const char kDisablePermissionActionReporting[] =
@@ -419,9 +416,6 @@ const char kEnableOfflineAutoReload[]       = "enable-offline-auto-reload";
 const char kEnableOfflineAutoReloadVisibleOnly[] =
     "enable-offline-auto-reload-visible-only";
 
-// Enables panels (always on-top docked pop-up windows).
-const char kEnablePanels[]                  = "enable-panels";
-
 // Enables permission action reporting to Safe Browsing servers for opted in
 // users.
 const char kEnablePermissionActionReporting[] =