chromeos: Remove LoginLibrary code, which is no longer used.

chrome/browser/chromeos/cros/cros_library.h

Index: chrome/browser/chromeos/cros/cros_library.h
diff --git a/chrome/browser/chromeos/cros/cros_library.h b/chrome/browser/chromeos/cros/cros_library.h
index 2afa4610ebb7192d0ad2270c5e10402c0aba569e..708dbf9fb051e275ff3db7c70e6b3851d4312ece 100644
--- a/chrome/browser/chromeos/cros/cros_library.h
+++ b/chrome/browser/chromeos/cros/cros_library.h
@@ -20,7 +20,6 @@ class BurnLibrary;
 class CertLibrary;
 class CryptohomeLibrary;
 class LibraryLoader;
-class LoginLibrary;
 class MountLibrary;
 class NetworkLibrary;
 class PowerLibrary;
@@ -49,7 +48,6 @@ class CrosLibrary {
     void SetCertLibrary(CertLibrary* library, bool own);
     void SetBurnLibrary(BurnLibrary* library, bool own);
     void SetCryptohomeLibrary(CryptohomeLibrary* library, bool own);
-    void SetLoginLibrary(LoginLibrary* library, bool own);
     void SetMountLibrary(MountLibrary* library, bool own);
     void SetNetworkLibrary(NetworkLibrary* library, bool own);
     void SetPowerLibrary(PowerLibrary* library, bool own);
@@ -77,7 +75,6 @@ class CrosLibrary {
   BurnLibrary* GetBurnLibrary();
   CertLibrary* GetCertLibrary();
   CryptohomeLibrary* GetCryptohomeLibrary();
-  LoginLibrary* GetLoginLibrary();
   MountLibrary* GetMountLibrary();
   NetworkLibrary* GetNetworkLibrary();
   PowerLibrary* GetPowerLibrary();
@@ -150,7 +147,6 @@ class CrosLibrary {
   Library<BurnLibrary> burn_lib_;
   Library<CertLibrary> cert_lib_;
   Library<CryptohomeLibrary> crypto_lib_;
-  Library<LoginLibrary> login_lib_;
   Library<MountLibrary> mount_lib_;
   Library<NetworkLibrary> network_lib_;
   Library<PowerLibrary> power_lib_;