[Fix-13928][UI] Fix repeat CustomParams input box

[imp2002]

Purpose of the pull request

Fix: #13928

Before:

After fix:

Now all CustomParams seems use:

But forgot to remove the code about CustomParams written before, lead the repeat.

Brief change log

remove repeat code of CustomParams input box in datax Custom Template mode

Verify this pull request

This pull request is code cleanup without any test coverage.

[codecov-commenter]

Codecov Report

Merging #14029 (ad4b150) into dev (4545093) will decrease coverage by 0.03%.
The diff coverage is n/a.

❗ Current head ad4b150 differs from pull request most recent head 1178218. Consider uploading reports for the commit 1178218 to get more accurate results

@@             Coverage Diff              @@
##                dev   #14029      +/-   ##
============================================
- Coverage     38.22%   38.20%   -0.03%     
+ Complexity     4437     4434       -3     
============================================
  Files          1220     1220              
  Lines         42698    42698              
  Branches       4734     4734              
============================================
- Hits          16322    16311      -11     
- Misses        24571    24586      +15     
+ Partials       1805     1801       -4     

see 3 files with indirect coverage changes

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[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
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No Coverage information
No Duplication information

[devosend]

LGTM