Remove dead CMake configuration from the release validation scope

- Top-level CMakeLists.txt: drop RTI/Connext DDS config and placeholder targets,
  MIGRATE_MODULE guarded-subdir machinery (now unconditional add_subdirectory),
  BUILD_QAV, BUILD_PLUGINS_*, KDReports stub, ArcGIS option and FindRTI placeholder loop
- Lts/CMakeLists.txt: release scope now unconditional (Common + Proxies/TrainingAreaBase),
  codegen/DDS/test/docs blocks removed
- Lts/Common: drop DDS/RTI-gated plugin and utils test blocks
- Lts/Proxies/TrainingAreaBase: remove RTI codegen, svcTabClient/svcTabServer, RTI plugins,
  sTAB; keep stub-only svcTabCommon + tabTelegrams + tabPluginInterface
- TetraIF/PrtCnv: remove out-of-scope TetraTestServer/LastTest subdirs
- Z/src/nglcompression: remove nglcomp_test (pre-existing Qt6 failure, no longer registered)
- Delete 16 unused cmake/ helper modules and the tests/ scaffolding dir
- new_docker_build.sh: drop BUILD_ARCGIS and nglcomp_test from the release build
- README: update ctest baseline to 7/7 and remove license/exception mentions

qt6-after/qt6-migrated-legatus/Lts/Common/LtsUtils/LtsUtilsCore/CMakeLists.txt

@@ -48,22 +48,3 @@ NGL_TARGET_LINK_LIBRARIES(LtsUtilsCore
     Qt6::Core
     LtsUtilsCoreHeaderOnly
 )
-
-#
-# --- Tests --------------------------------------------------------------
-#
-IF(BUILD_RTI AND (BUILD_WS OR BUILD_SV) AND BUILD_TESTING)
-  ADD_EXECUTABLE(utils_test
-    UnitTests/utils_test.cpp
-    UnitTests/utils_test.h
-    promise_examples.h
-    promise_examples.cpp
-  )
-  TARGET_LINK_LIBRARIES(utils_test
-    LtsUtilsCore
-    Qt6::Core
-    Qt6::Test
-    ddscore
-  )
-  ADD_TEST(NAME utils_test COMMAND $<TARGET_FILE:utils_test>)
-ENDIF()