Refactor EWK APIs controlling initial value of list-style-position CSS property
This commit re-enables the ewk_settings_initial_list_style_position_{get|set}
API calls by removing EWK_BRINGUP define guards.
This API is not implemented on engine site. It only toggles a flag
inside WebPreferences.
Bug: http://107.108.218.239/bugzilla/show_bug.cgi?id=9533
Reviewed by: Antonio Gomes, Piotr Tworek, commitbot
Change-Id: I5e7e1c825cc1ccac305e10eb05318617c0417e9e
Signed-off-by: Kamil Klimek <k.klimek@partner.samsung.com>