Product cleanups in the wake of multi-install removal.

chrome/installer/util/util_constants.cc

Index: chrome/installer/util/util_constants.cc
diff --git a/chrome/installer/util/util_constants.cc b/chrome/installer/util/util_constants.cc
index 9cc798d859baa2b157f9183911f20583bafd8c0f..e768bf0d2249a03538d98b0bb3142e0821b091e4 100644
--- a/chrome/installer/util/util_constants.cc
+++ b/chrome/installer/util/util_constants.cc
@@ -231,8 +231,6 @@ const wchar_t kInstallerResultUIString[] = L"InstallerResultUIString";
 const wchar_t kInstallerSuccessLaunchCmdLine[] =
     L"InstallerSuccessLaunchCmdLine";
 
-const wchar_t kOptionMultiInstall[] = L"multi-install";
-
 // Chrome channel display names.
 const wchar_t kChromeChannelUnknown[] = L"unknown";
 const wchar_t kChromeChannelCanary[] = L"canary";