evas_inline: Clean up evas_object_is_opaque function

evas_inline: Clean up evas_object_is_opaque function

Summary:
This file is full of functions called as:
foo(eo_obj, obj);

Most of them can be reduced to foo(obj); and internally get the eo_obj
with obj->object

This would make it impossible to screw up calling them passing an
unrelated pair, and make calling code a little more readable.

ref T7230

Depends on D9048

Reviewers: raster, cedric, zmike

Reviewed By: zmike

Subscribers: #reviewers, #committers

Tags: #efl

Maniphest Tasks: T7230

Differential Revision: https://phab.enlightenment.org/D9049