Remove multi-install from chrome/installer/setup.

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 4762d4f02b4ec5d20f7751669d17edd56a6ece4e..cfe6b2203ec8d20e24b6e60853448ecb940d2f3c 100644
--- a/chrome/installer/util/util_constants.cc
+++ b/chrome/installer/util/util_constants.cc
@@ -206,7 +206,6 @@ const char kGoogleUpdateIsMachineEnvVar[] = "GoogleUpdateIsMachine";
 // TODO(gab): Rename setup.exe itself altogether and use the same binary for
 // Active Setup.
 const wchar_t kActiveSetupExe[] = L"chrmstp.exe";
-const wchar_t kAppLauncherGuid[] = L"{FDA71E6F-AC4C-4a00-8B70-9958A68906BF}";
 const wchar_t kChromeDll[] = L"chrome.dll";
 const wchar_t kChromeChildDll[] = L"chrome_child.dll";
 const wchar_t kChromeExe[] = L"chrome.exe";