Remove support for dynamic search

[MartinRiese]

Product Description

Commcare HQ does not set the dynamic search flag anymore. It has been removed in this PR: dimagi/commcare-hq#37634. Formplayer should behave the same way as
if the flag is set to false.

commcare-core PR: dimagi/commcare-core#1537

Technical Summary

https://dimagi.atlassian.net/browse/USH-6541

Safety Assurance

Safety story

Automated test coverage

QA Plan

Special deploy instructions

• This PR can be deployed after merge with no further considerations. HQ code already has been deployed.

Rollback instructions

• This PR can be reverted after deploy with no further considerations.

Review

• The set of people pinged as reviewers is appropriate for the level of risk of the change.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 70.08%. Comparing base (14f69ec) to head (153da83).

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #1772      +/-   ##
============================================
- Coverage     70.10%   70.08%   -0.02%     
+ Complexity     2030     2028       -2     
============================================
  Files           257      257              
  Lines          8011     8007       -4     
  Branches        764      764              
============================================
- Hits           5616     5612       -4     
  Misses         2112     2112              
  Partials        283      283              

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