### What changes were proposed in this pull request?
This is a followup of https://github.com/apache/spark/pull/30289. It removes the hack in `View.effectiveSQLConf`, by putting the max nested view depth in `AnalysisContext`. Then we don't get the max nested view depth from the active SQLConf, which keeps changing during nested view resolution.
### Why are the changes needed?
remove hacks.
### Does this PR introduce _any_ user-facing change?
No
### How was this patch tested?
If I just remove the hack, `SimpleSQLViewSuite.restrict the nested level of a view` fails. With this fix, it passes again.
Closes#30575 from cloud-fan/view.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
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