Revert to non-schema-based Sql transform. (#29831)

Issues with unknown logical types.

Author: robertwb

sdks/python/apache_beam/yaml/standard_providers.yaml

@@ -18,9 +18,15 @@
 # TODO(robertwb): Add more providers.
 # TODO(robertwb): Perhaps auto-generate this file?
 
+- type: 'beamJar'
+  config:
+    gradle_target: 'sdks:java:extensions:sql:expansion-service:shadowJar'
+    version: BEAM_VERSION
+  transforms:
+     Sql: 'beam:external:java:sql:v1'
+
 - type: renaming
   transforms:
-    'Sql': 'Sql'
     'MapToFields-java': 'MapToFields-java'
     'MapToFields-generic': 'MapToFields-java'
     'Filter-java': 'Filter-java'