Remove postgres check from entrypoint

geeksbot_web/entrypoint

@@ -4,39 +4,6 @@ set -o errexit
 set -o pipefail
 set -o nounset
 
-if [ -z "${POSTGRES_USER}" ]; then
-    base_postgres_image_default_user='postgres'
-    export POSTGRES_USER="${base_postgres_image_default_user}"
-fi
-
-echo "Checking on PostgreSQL"
-
-postgres_ready() {
-python << END
-import sys
-
-import psycopg2
-
-try:
-    psycopg2.connect(
-        dbname="${POSTGRES_DB}",
-        user="${POSTGRES_USER}",
-        password="${POSTGRES_PASSWORD}",
-        host="${POSTGRES_HOST}",
-        port="${POSTGRES_PORT}",
-    )
-except psycopg2.OperationalError:
-    sys.exit(-1)
-sys.exit(0)
-
-END
-}
-until postgres_ready; do
-  >&2 echo 'Waiting for PostgreSQL to become available...'
-  sleep 1
-done
->&2 echo 'PostgreSQL is available'
-
 python manage.py collectstatic --noinput
 python manage.py makemigrations --noinput
 python manage.py migrate