[7.0] Remove CMSObject and LegacyPropertyManagementTrait#47379

Hackwar wants to merge 3 commits into

joomla:7.0-devjoomla/joomla-cms:7.0-devfrom

Hackwar:7.0-cms-object-propertytraitHackwar/joomla-cms:7.0-cms-object-propertytraitCopy head branch name to clipboard