Fixed #35786 -- Removed outdated note about database defaults in AddField/AlterField docs.

Author: AhmedNassar7

docs/ref/migration-operations.txt

@@ -165,8 +165,7 @@ value is permanent and should be baked into the project state (``True``),
 or if it is temporary and just for this migration (``False``) - usually
 because the migration is adding a non-nullable field to a table and needs
 a default value to put into existing rows. It does not affect the behavior
-of setting defaults in the database directly - Django never sets database
-defaults and always applies them in the Django ORM code.
+of setting defaults in the database directly.
 
 .. warning::
 
@@ -217,8 +216,7 @@ value is permanent and should be baked into the project state (``True``),
 or if it is temporary and just for this migration (``False``) - usually
 because the migration is altering a nullable field to a non-nullable one and
 needs a default value to put into existing rows. It does not affect the
-behavior of setting defaults in the database directly - Django never sets
-database defaults and always applies them in the Django ORM code.
+behavior of setting defaults in the database directly.
 
 Note that not all changes are possible on all databases - for example, you
 cannot change a text-type field like ``models.TextField()`` into a number-type