remove old qrencode package

Docker/x-install.sh

@@ -6,7 +6,6 @@ xbps-install -Sy git git-lfs \
 	tar \
 	bash \
 	make \
-	qrencode \
 	ImageMagick \
 	texlive-latexmk \
 	texlive-bin 

layout.sty

@@ -28,6 +28,7 @@
 \RequirePackage{tabularx}
 \RequirePackage{wrapfig}
 \RequirePackage{float}
+\RequirePackage{qrcode}
 \RequirePackage{epigraph} % part quotes
 \RequirePackage{microtype} % more precise word-placement
 \RequirePackage{makeidx}