Replace test data for test_libgolden_cpp_fabricated_function_ast_removed_diff

The difference between libgolden_cpp.so.lsdump and
libgolden_cpp_fabricated_function_ast_removed.so.lsdump is that the
latter one doesn't have the declaration of "SuperSpeaker::SpeakLouder",
but both of the lsdumps have the ELF symbol.

The source code of libgolden_cpp_fabricated_function_ast_removed is
missing. This commit replaces the test data with
libgolden_cpp_add_function and libgolden_cpp_add_function_sybmol_only.

Test: ./test.py
Bug: 117582158
Change-Id: Ieed8182731372f9ec7b3bdd209af23b0081cb778