Remove ldap_cert_file mentions

[delozierjk]

Description of the changes

Check all that apply:

• [x ] updated documentation
• [ x] Source added/refactored
• Added unit tests
• Added integration tests
• (If applicable) Verified that manual tests requiring the /SNS and /HFIR filesystems pass without fail

References:

• Links to IBM EWM items:
• Links to related issues or pull requests:

Manual test for the reviewer

(Instructions for testing here)

Check list for the reviewer

• best software practices
  • clearly named variables (better to be verbose in variable names)
  • code comments explaining the intent of code blocks
• All the tests are passing
• The documentation is up to date
• code comments added when explaining intent

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 77.53%. Comparing base (7dc0e6b) to head (d29659c).
Report is 1 commits behind head on next.

Additional details and impacted files

@@           Coverage Diff           @@
##             next     #189   +/-   ##
=======================================
  Coverage   77.52%   77.53%           
=======================================
  Files          54       54           
  Lines        4704     4701    -3     
=======================================
- Hits         3647     3645    -2     
+ Misses       1057     1056    -1     

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