Clean up build script by removing unnecessary steps

Removed custom file copying and package installation steps from the build script.

Author: castrojo

build/10-build.sh

@@ -11,40 +11,3 @@ set -eoux pipefail
 
 # Source helper functions
 # shellcheck source=/dev/null
-source /ctx/build/copr-helpers.sh
-
-echo "::group:: Copy Custom Files"
-
-# Copy Brewfiles to standard location
-mkdir -p /usr/share/ublue-os/homebrew/
-cp /ctx/custom/brew/*.Brewfile /usr/share/ublue-os/homebrew/
-
-# Consolidate Just Files
-mkdir -p /usr/share/ublue-os/just/
-find /ctx/custom/ujust -iname '*.just' -exec printf "\n\n" \; -exec cat {} \; >> /usr/share/ublue-os/just/60-custom.just
-
-# Copy Flatpak preinstall files
-mkdir -p /etc/flatpak/preinstall.d/
-cp /ctx/custom/flatpaks/*.preinstall /etc/flatpak/preinstall.d/
-
-echo "::endgroup::"
-
-echo "::group:: Install Packages"
-
-# Install packages using dnf5
-# Example: dnf5 install -y tmux
-
-# Example using COPR with isolated pattern:
-# copr_install_isolated "ublue-os/staging" package-name
-
-echo "::endgroup::"
-
-echo "::group:: System Configuration"
-
-# Enable/disable systemd services
-systemctl enable podman.socket
-# Example: systemctl mask unwanted-service
-
-echo "::endgroup::"
-
-echo "Custom build complete!"