Removed visibility settings from samples (#16192)

samples/cpp/CMakeLists.txt

@@ -88,12 +88,6 @@ if(ARM AND NOT (CMAKE_CROSSCOMPILING OR CMAKE_CXX_COMPILER_ID STREQUAL "MSVC"))
     add_compile_options(-march=armv7-a+fp)
 endif()
 
-set(CMAKE_POLICY_DEFAULT_CMP0063 NEW)
-set(CMAKE_POSITION_INDEPENDENT_CODE ON)
-set(CMAKE_CXX_VISIBILITY_PRESET hidden)
-set(CMAKE_C_VISIBILITY_PRESET hidden)
-set(CMAKE_VISIBILITY_INLINES_HIDDEN ON)
-
 ####################################
 ## to use C++11; can overwritten via cmake command line
 if(NOT DEFINED CMAKE_CXX_STANDARD)