[FLINK-36792][table] Remove FlinkJoinPushExpressionsRule.

[liuyongvs]

What is the purpose of the change

A bit reasoning for the change
high calcite version has fixed, current calcite version is 1.34

Verifying this change

This change is already covered by existing tests

Does this pull request potentially affect one of the following parts:

• Dependencies (does it add or upgrade a dependency): (no)
• The public API, i.e., is any changed class annotated with @Public(Evolving): (no)
• The serializers: (no)
• The runtime per-record code paths (performance sensitive): (no)
• Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Kubernetes/Yarn, ZooKeeper: (no)
• The S3 file system connector: (no)

Documentation

• Does this pull request introduce a new feature? (no)
• If yes, how is the feature documented? (not applicable)

[flinkbot]

CI report:

• 2c659dd Azure: SUCCESS

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[snuyanzin]

This is just class removal, I don't think we need to split it in several PRs
can you combine this and #25690 into one?

[liuyongvs]

hi @snuyanzin , may not! every rule whether can be removed should be checked.
for example FlinkPruneEmptyRules this rule will cause some test failed because plan changed.
and i also check other rule copy from calcite in flink can not removed.

[davidradl]

Reviewed by Chi on 28/11/24 business as usual progressing with committer involved.

[liuyongvs]

hi @snuyanzin will you look again?