Jan Blackquill authored Feb 25, 2021 and Nate Graham committed Feb 26, 2021

This reverts commit 2f351fe1.

We hve not yet figured out how to apply this style consistently
and were unable to implement it for controls other than text fields
in Plasma 5.21, so it is better to remove it for now than to have an
inconsistent UI. We will re-evaluate this for Plasma 5.22.

BUG: 430944
BUG: 430943
BUG: 433421
FIXED-IN: 5.21.2