Removing ctests of an obsolete bufr_converter in SOCA

[apchoiCMD]

This PR includes,

• Remove the bufr_converters that are binary executable ones
• Remove shell script that is related to bufr_converter
• Remove unused test inputs
• Resolves #951

[emcbot]

Automated Global-Workflow GDASApp Testing Results: Machine: orion

Start: Wed Apr 17 13:20:29 CDT 2024 on Orion-login-1.HPC.MsState.Edu
---------------------------------------------------
Build:                                 *SUCCESS*
Build: Completed at Wed Apr 17 14:15:20 CDT 2024
---------------------------------------------------
Tests:                                  *Failed*
Tests: Failed at Wed Apr 17 14:37:10 CDT 2024
Tests: 91% tests passed, 4 tests failed out of 45
    1768 - test_gdasapp_atm_jjob_var_run (Failed)
    1769 - test_gdasapp_atm_jjob_var_inc (Failed)
    1770 - test_gdasapp_atm_jjob_var_final (Failed)
Tests: see output at /work2/noaa/stmp/cmartin/CI/GDASApp/workflow/PR/1056/global-workflow/sorc/gdas.cd/build/log.ctest

[emcbot]

Automated Global-Workflow GDASApp Testing Results: Machine: hera

Start: Wed Apr 17 18:29:00 UTC 2024 on hfe03
---------------------------------------------------
Build:                                 *SUCCESS*
Build: Completed at Wed Apr 17 19:16:44 UTC 2024
---------------------------------------------------
Tests:                                  *Failed*
Tests: Failed at Wed Apr 17 19:53:22 UTC 2024
Tests: 91% tests passed, 4 tests failed out of 45
    1767 - test_gdasapp_atm_jjob_var_run (Failed)
    1768 - test_gdasapp_atm_jjob_var_inc (Failed)
    1769 - test_gdasapp_atm_jjob_var_final (Failed)
Tests: see output at /scratch1/NCEPDEV/da/Cory.R.Martin/CI/GDASApp/workflow/PR/1056/global-workflow/sorc/gdas.cd/build/log.ctest