Remove all remaining removed_in_20 warnings slated for removal

Finalize all remaining removed-in-2.0 changes so that we
can begin doing pep-484 typing without old things
getting in the way (we will also have to do public_factory).

note there are a few "moved_in_20()" and "became_legacy_in_20()"
warnings still in place.  The SQLALCHEMY_WARN_20 variable
is now removed.

Also removed here are the legacy "in place mutators" for Select
statements, and some keyword-only argument signatures in Core
have been added.

Also in the big change department, the ORM mapper() function
is removed entirely; the Mapper class is otherwise unchanged,
just the public-facing API function.  Mappers are now always
given a registry in which to participate, however the
argument signature of Mapper is not changed. ideally "registry"
would be the first positional argument.

Fixes: #7257

Change-Id: Ic70c57b9f1cf7eb996338af5183b11bdeb3e1623

1 files changed, 0 insertions, 33 deletions

diff --git a/test/engine/test_deprecations.py b/test/engine/test_deprecations.py
index 454a6c629..8dc1f0f48 100644
--- a/test/engine/test_deprecations.py
+++ b/test/engine/test_deprecations.py
@@ -5,9 +5,7 @@ import sqlalchemy as tsa
 from sqlalchemy import create_engine
 from sqlalchemy import event
 from sqlalchemy import exc
-from sqlalchemy import ForeignKey
 from sqlalchemy import insert
-from sqlalchemy import inspect
 from sqlalchemy import Integer
 from sqlalchemy import MetaData
 from sqlalchemy import pool
@@ -228,37 +226,6 @@ def select1(db):
     return str(select(1).compile(dialect=db.dialect))
 
 
-class DeprecatedReflectionTest(fixtures.TablesTest):
-    @classmethod
-    def define_tables(cls, metadata):
-        Table(
-            "user",
-            metadata,
-            Column("id", Integer, primary_key=True),
-            Column("name", String(50)),
-        )
-        Table(
-            "address",
-            metadata,
-            Column("id", Integer, primary_key=True),
-            Column("user_id", ForeignKey("user.id")),
-            Column("email", String(50)),
-        )
-
-    def test_reflecttable(self):
-        inspector = inspect(testing.db)
-        metadata = MetaData()
-
-        table = Table("user", metadata)
-        with testing.expect_deprecated_20(
-            r"The Inspector.reflecttable\(\) method is considered "
-        ):
-            res = inspector.reflecttable(table, None)
-        exp = inspector.reflect_table(table, None)
-
-        eq_(res, exp)
-
-
 class EngineEventsTest(fixtures.TestBase):
     __requires__ = ("ad_hoc_engines",)
     __backend__ = True