Remove GUID property from user

Core.Thalos.BuildingBlocks/Adapters/UserAdapter.cs

@@ -16,14 +16,6 @@ namespace Core.Thalos.BuildingBlocks
     [CollectionAttributeName("Users")]
     public class UserAdapter : Document
     {
-        /// <summary>
-        /// Gets or sets the guid of the user.
-        /// </summary>
-        [BsonElement("guid")]
-        [BsonRepresentation(BsonType.String)]
-        [JsonPropertyName("guid")]
-        public string? Guid { get; set; }
-
         /// <summary>
         /// Gets or sets the email address of the user.
         /// </summary>