Remove useless ProjectNode after SortElimination

[Wei-hao-Li]

issue: Now we may do SortElimination optimization when generate DistributionPlan or do DistributionPlan optimization, there may be useless ProjectNode after the optimization.

[codecov]

Codecov Report

❌ Patch coverage is 38.33333% with 37 lines in your changes missing coverage. Please review.
✅ Project coverage is 40.86%. Comparing base (44d4f6d) to head (9ea7439).

Files with missing lines	Patch %	Lines
.../planner/iterative/rule/PruneTableScanColumns.java	17.07%	34 Missing ⚠️
...ational/planner/optimizations/SortElimination.java	84.21%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff            @@
##             master   #17806   +/-   ##
=========================================
  Coverage     40.85%   40.86%           
- Complexity     2610     2611    +1     
=========================================
  Files          5186     5186           
  Lines        351193   351250   +57     
  Branches      44946    44952    +6     
=========================================
+ Hits         143491   143546   +55     
- Misses       207702   207704    +2     

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[sonarqubecloud]

Quality Gate passed

Issues
1 New issue
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud