elementary: Don't call ecore_wl2_shutdown unless we have a display
elementary: Don't call ecore_wl2_shutdown unless we have a display

During _elm_config_sub_shutdown we were explicitly calling
ecore_wl2_shutdown. We should only be doing this if we are actually in
a wayland environment.

@fix

Signed-off-by: Chris Michael <2c9adca9bdb4861297f022d161a6a7c2d4597bd5@osg.samsung.com>

tasn/elementary,rvandegrift/elementary,rvandegrift/elementary,tasn/elementary,tasn/elementary,tasn/elementary,rvandegrift/elementary,rvandegrift/elementary,tasn/elementary