Revert "Merge branch 'gsoc-mootools-jquery-core' of https://github.com/AshanFernando/joomla-cms into AshanFernando-gsoc-mootools-jquery-core"

This reverts commit 6b865153a0afbf956197eead126a4078a8dd667c, reversing
changes made to ba5dbafcd9fb86d6d8756051c677d9b32d99d690.