[offload] Don't print device path during configure (llvm#138109)

Author: RossBrunton

offload/unittests/OffloadAPI/CMakeLists.txt

@@ -2,7 +2,6 @@ set(PLUGINS_TEST_COMMON LLVMOffload)
 set(PLUGINS_TEST_INCLUDE ${LIBOMPTARGET_INCLUDE_DIR} ${CMAKE_CURRENT_SOURCE_DIR}/common)
 
 add_subdirectory(device_code)
-message(${OFFLOAD_TEST_DEVICE_CODE_PATH})
 
 add_offload_unittest("offload.unittests"
     ${CMAKE_CURRENT_SOURCE_DIR}/common/Environment.cpp