[SPARK-38754][SQL][TEST][3.1] Using EquivalentExpressions getEquivalentExprs function instead of getExprState at SubexpressionEliminationSuite

[monkeyboy123]

What changes were proposed in this pull request?

This pr use EquivalentExpressions getEquivalentExprs function instead of getExprState at SubexpressionEliminationSuite, and remove cpus paramter.

Why are the changes needed?

Fixes build error

Does this PR introduce any user-facing change?

NO

How was this patch tested?

CI Tests

[monkeyboy123]

Can we merge it ？cc: @cloud-fan

[cloud-fan]

thanks, merging to 3.2/3.1

[dongjoon-hyun]

Hi, @cloud-fan .

This seems to break branch-3.2 compilation.

[error] /home/runner/work/spark/spark/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/SubexpressionEliminationSuite.scala:404:26: value getEquivalentExprs is not a member of org.apache.spark.sql.catalyst.expressions.EquivalentExpressions
[error]       assert(equivalence.getEquivalentExprs(expression).size == 0)
[error]                          ^
[error] one error found

[dongjoon-hyun]

Originally, branch-3.1 was broken, but branch-3.2 wasn't.
Given that, the forward-port from 3.1 to 3.2 looks wrong to me.
I'm going to revert this from branch-3.2 and recover branch-3.2 compilation.
If we need this in branch-3.2 for some other reasons, please make a follow-up PR to get a build result.
Thanks!