Revert "UNPICK changes to review"

This reverts commit 2905184.

Author: kosiew

examples/datafusion-ffi-example/python/tests/_test_table_function.py

@@ -53,7 +53,7 @@ def test_ffi_table_function_call_directly():
     table_udtf = udtf(table_func, "my_table_func")
 
     my_table = table_udtf()
-    ctx.register_table_provider("t", my_table)
+    ctx.register_table("t", my_table)
     result = ctx.table("t").collect()
 
     assert len(result) == 2

examples/datafusion-ffi-example/python/tests/_test_table_provider.py

@@ -18,14 +18,14 @@
 from __future__ import annotations
 
 import pyarrow as pa
-from datafusion import SessionContext
+from datafusion import SessionContext, Table
 from datafusion_ffi_example import MyTableProvider
 
 
 def test_table_loading():
     ctx = SessionContext()
     table = MyTableProvider(3, 2, 4)
-    ctx.register_table_provider("t", table)
+    ctx.register_table("t", Table.from_capsule(table.__datafusion_table_provider__()))
     result = ctx.table("t").collect()
 
     assert len(result) == 4