fix: remove project() from the doc

docs/src/main/asciidoc/mongodb-panache-guide.adoc

@@ -229,9 +229,6 @@ sets you can use the `find` method equivalents, which return a `PanacheQuery` on
 // create a query for all living persons
 PanacheQuery<Person> livingPersons = Person.find("status", Status.Alive);
 
-// specify a projection to limit the fields returned from the database
-livingPersons.project("name", "birthdate");
-
 // make it use pages of 25 entries at a time
 livingPersons.page(Page.ofSize(25));
 
@@ -384,19 +381,6 @@ public class Person extends PanacheMongoEntity {
 Both `findByNameWithPanacheQLQuery()` and `findByNameWithNativeQuery()` methods will return the same result but query written in PanacheQL
 will use the entity field name: `name`, and native query will use the MongoDB field name: `lastname`.
 
-== Query projection
-
-Query projection can be done with the `project()` method on the `PanacheQuery` object that is returned by the `find()` method.
-You can use it to restrict which fields will be returned by the database.
-Note that the ID field of your entity (the one corresponding to the MongoDB `_id` field) will always be returned.
-
-[source,java]
-----
-// only 'name' and 'id' fields will be returned
-PanacheQuery<Person> query = Person.find("status ", Status.Alive).project("name");
-PanacheQuery<Person> query = Person.find("{'status': ?1}", Status.Alive).project("name");
-----
-
 == The DAO/Repository option
 
 Look, we get it: you have a love/hate relationship with DAOs/Repositories but you can't live without them. We don't judge, we know life is tough and we've got you covered.