Bug#33339129 : Remove the redundant code.

Description:
Redundant code removal in class Security_context,
function Security_context::init and
function Security_context::checkout_access_maps.

Fix:
Redundant code removed.

RB#27342

Author: Omar Sharieff

sql/auth/sql_security_ctx.cc

@@ -87,7 +87,6 @@ void Security_context::init() {
   m_master_access = 0;
   m_db_access = NO_ACCESS;
   m_acl_map = nullptr;
-  m_map_checkout_count = 0;
   m_password_expired = false;
   m_is_locked = false;
   m_is_skip_grants_user = false;
@@ -396,7 +395,6 @@ void Security_context::checkout_access_maps(void) {
   }
 
   if (m_active_roles.size() == 0) return;
-  ++m_map_checkout_count;
   Auth_id_ref uid;
   uid.first.str = this->m_priv_user;
   uid.first.length = this->m_priv_user_length;

sql/auth/sql_security_ctx.h

@@ -371,7 +371,6 @@ class Security_context {
   bool m_password_expired;
   List_of_auth_id_refs m_active_roles;
   Acl_map *m_acl_map;
-  int m_map_checkout_count;
   /**
     True if this account can't be logged into.
   */