backport: devcontainers/features#96 (#1582)

* backport: devcontainers/features#96

ref: devcontainers/features#94

* Update sshd-debian.sh

* Update sshd-debian.sh

Author: joshspicer

script-library/sshd-debian.sh

@@ -41,21 +41,10 @@ elif [ "${USERNAME}" = "none" ] || ! id -u ${USERNAME} > /dev/null 2>&1; then
     USERNAME=root
 fi
 
-# Function to run apt-get if needed
-apt_get_update_if_needed()
-{
-    if [ ! -d "/var/lib/apt/lists" ] || [ "$(ls /var/lib/apt/lists/ | wc -l)" = "0" ]; then
-        echo "Running apt-get update..."
-        apt-get update
-    else
-        echo "Skipping apt-get update."
-    fi
-}
-
 # Checks if packages are installed and installs them if not
 check_packages() {
     if ! dpkg -s "$@" > /dev/null 2>&1; then
-        apt_get_update_if_needed
+        apt-get update -y
         apt-get -y install --no-install-recommends "$@"
     fi
 }