This reverts commit 1714fe93f4.
We actually want this type, it makes things clearer.
Conflicts:
src/tests/eo/function_overrides/function_overrides_inherit2.c
src/tests/eo/function_overrides/function_overrides_simple.c
src/tests/eo/suite/eo_test_class_simple.c
Also remove the Classes section from the Ecore_Audio_Group, we don't
need it as the pages are linked automatically
Signed-off-by: Daniel Willmann <d.willmann@samsung.com>