Revert of Add options to write version number to registry.

chrome/installer/setup/setup_constants.cc

Index: chrome/installer/setup/setup_constants.cc
diff --git a/chrome/installer/setup/setup_constants.cc b/chrome/installer/setup/setup_constants.cc
index c6267467bf2c361818e23266789ad09ac8d9fd6f..77c03a64ce140f943f9fd8bf66e46eef37ea8c36 100644
--- a/chrome/installer/setup/setup_constants.cc
+++ b/chrome/installer/setup/setup_constants.cc
@@ -20,19 +20,4 @@
 const wchar_t kMediaPlayerRegPath[] =
     L"Software\\Microsoft\\MediaPlayer\\ShimInclusionList";
 
-namespace switches {
-
-// Setting this will delay the operation of setup by the specified number of
-// seconds.  This is used when changing the DisplayVersion registry value
-// only after some time has passed, called by the MSI installer.
-const char kDelay[] = "delay";
-
-// Set the MSI-managed DisplayVersion in the registry to match Chrome's real
-// version number. The parameter to this option specifies the product-id in
-// the registry under HKLM.
-const char kSetDisplayVersionProduct[] = "set-display-version-product";
-const char kSetDisplayVersionValue[] = "set-display-version-value";
-
-}  // namespace switches
-
 }  // namespace installer