universal-package-install update/add workflows

root/etc/cont-init.d/95-apt-get

@@ -1,5 +0,0 @@
-#!/usr/bin/with-contenv bash
-
-if [ -f /usr/bin/apt ]; then
-    apt-get update
-fi

root/etc/cont-init.d/98-install-packages

@@ -1,27 +0,0 @@
-#!/usr/bin/with-contenv bash
-
-# Exit if no installable packages are provided
-if [ -z ${INSTALL_PACKAGES+x} ]; then
-    echo "**** No packages to install ****"
-    exit 0
-fi
-
-
-#Split list of packages on delimiter '|'
-IFS='|'
-INSTALL_PACKAGES=(${INSTALL_PACKAGES})
-for PKG in "${INSTALL_PACKAGES[@]}"; do
-    echo "Installing ${PKG}"
-
-    # Ubuntu
-    if [ -f /usr/bin/apt ]; then
-        DEBIAN_FRONTEND="noninteractive"
-        apt-get install -y --no-install-recommends ${PKG}
-    fi
-
-    # Alpine
-    if [ -f /sbin/apk ]; then
-        apk add --no-cache ${PKG}
-    fi
-
-done