tests: Deduplicate test_framework in a/z/c/z/z/s/l/zw-libs2

Origin: SiliconLabsSoftware#36
Bug: SiliconLabsSoftware#55
Relate-to: SiliconLabsSoftware#46
Signed-off-by: Philippe Coval <philippe.coval@silabs.com>

Author: rzr

applications/zpc/components/zwave/zwave_transports/s2/libs/zw-libs2/CMakeLists.txt

@@ -54,7 +54,6 @@ endif()
 set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g3")
 if(NOT DEFINED SKIP_TESTING OR CMAKE_BUILD_TYPE STREQUAL Test)
   enable_testing()
-  add_subdirectory(TestFramework)
   add_subdirectory(test)
   message(STATUS "Adding unit test for libs2")
 else()