This reverts commit 4a6d8f422ecbcadb32f54bfa7daacfe59df85beb.
Adding a dependency to `kde-style-breeze` pulls in around 35 new packages,
for an additional size of 40 MB (unpacked). It's basically a part of the
KDE stack that is installed. Not nice for users who don't run KDE.
a1129a757e