fix: Remove adw-gtk3, this is upstream now

Containerfile

@@ -83,29 +83,10 @@ RUN sed -i 's/-march=native -mtune=native/-march=x86-64 -mtune=generic/g' /etc/m
         --noconfirm && \
     pacman -S \
         xdg-desktop-portal-gtk \
-        --noconfirm && \
-    useradd -m --shell=/bin/bash build && usermod -L build && \
-    echo "build ALL=(ALL) NOPASSWD: ALL" >> /etc/sudoers && \
-    echo "root ALL=(ALL) NOPASSWD: ALL" >> /etc/sudoers
-
-# Add adw-gtk3 theme.
-USER build
-WORKDIR /home/build
-RUN paru -R \
-        xcursor-breeze \
-        --noconfirm && \
-    paru -S \
-        aur/adw-gtk3 \
         --noconfirm
-USER root
-WORKDIR /
 
 # Cleanup
-RUN userdel -r build && \
-    rm -drf /home/build && \
-    sed -i '/build ALL=(ALL) NOPASSWD: ALL/d' /etc/sudoers && \
-    sed -i '/root ALL=(ALL) NOPASSWD: ALL/d' /etc/sudoers && \
-    sed -i 's/-march=x86-64 -mtune=generic/-march=native -mtune=native/g' /etc/makepkg.conf && \
+RUN sed -i 's/-march=x86-64 -mtune=generic/-march=native -mtune=native/g' /etc/makepkg.conf && \
     rm -rf \
         /tmp/* \
         /var/cache/pacman/pkg/*