cros: Change max users to be a constant

components/session_manager/core/session_manager.cc

Index: components/session_manager/core/session_manager.cc
diff --git a/components/session_manager/core/session_manager.cc b/components/session_manager/core/session_manager.cc
index d7a194676f0d9c7d4ef30d9565f34f45001c0d93..020f1af1fdfede0321fcd0f1a59ee510bbc338f9 100644
--- a/components/session_manager/core/session_manager.cc
+++ b/components/session_manager/core/session_manager.cc
@@ -70,11 +70,6 @@ bool SessionManager::IsScreenLocked() const {
   return session_state_ == SessionState::LOCKED;
 }
 
-uint32_t SessionManager::GetMaximumNumberOfUserSessions() const {
-  // Limits the number of logged in users to 10 due to memory constraints.
-  return 10u;
-}
-
 void SessionManager::AddObserver(SessionManagerObserver* observer) {
   observers_.AddObserver(observer);
 }