Remove |kGuestProfilesNumCreated| profile state.

|kGuestProfilesNumCreated| profile state was added to keep track of the
number of Ephemeral Guest profiles.
Ephemeral Guest profiles are deprecated and removed and so this state is
not needed anymore.

Bug: 1225156
Change-Id: I292913f5251d43ccc718ffea6d285532b591b744
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3015511
Commit-Queue: Ramin Halavati <[email protected]>
Reviewed-by: Dominic Battré <[email protected]>
Cr-Commit-Position: refs/heads/master@{#900961}
diff --git a/chrome/browser/prefs/browser_prefs.cc b/chrome/browser/prefs/browser_prefs.cc
index a229a85a..1027493 100644
--- a/chrome/browser/prefs/browser_prefs.cc
+++ b/chrome/browser/prefs/browser_prefs.cc
@@ -627,6 +627,7 @@
     "profile.number_sign_in_password_promo_shown";
 const char kSignInPasswordPromoRevive[] =
     "profile.sign_in_password_promo_revive";
+const char kGuestProfilesNumCreated[] = "profile.guest_profiles_created";
 #if BUILDFLAG(ENABLE_DICE_SUPPORT)
 constexpr char kProfileSwitchInterceptionDeclinedPref[] =
     "signin.ProfileSwitchInterceptionDeclinedPref";
@@ -804,6 +805,7 @@
   registry->RegisterBooleanPref(kWasSignInPasswordPromoClicked, false);
   registry->RegisterIntegerPref(kNumberSignInPasswordPromoShown, 0);
   registry->RegisterBooleanPref(kSignInPasswordPromoRevive, false);
+  registry->RegisterIntegerPref(kGuestProfilesNumCreated, 1);
 
 #if BUILDFLAG(ENABLE_DICE_SUPPORT)
   registry->RegisterDictionaryPref(kProfileSwitchInterceptionDeclinedPref);
@@ -1584,6 +1586,7 @@
   profile_prefs->ClearPref(kWasSignInPasswordPromoClicked);
   profile_prefs->ClearPref(kNumberSignInPasswordPromoShown);
   profile_prefs->ClearPref(kSignInPasswordPromoRevive);
+  profile_prefs->ClearPref(kGuestProfilesNumCreated);
 #if BUILDFLAG(ENABLE_DICE_SUPPORT)
   profile_prefs->ClearPref(kProfileSwitchInterceptionDeclinedPref);
 #endif