cmake: Remove unused MacroUtils.cmake module

Authored by asturmlechner on Apr 21 2019, 2:16 PM.

Description

cmake: Remove unused MacroUtils.cmake module

Test Plan: Built successfully against KF5MediaWiki and KF5KIO

Reviewers: jriddell, aacid

Differential Revision: https://phabricator.kde.org/D20713

Details