Further cleanup of or-entrypoint.sh

Author: richturner

Dockerfile

@@ -107,7 +107,6 @@ ENV PGROOT=/var/lib/postgresql \
     POSTGRES_USER=${POSTGRES_USER:-postgres} \
     POSTGRES_PASSWORD=${POSTGRES_PASSWORD:-postgres} \
     PG_MAJOR=$PG_MAJOR \
-    PREV_PG_MAJOR=$PREV_PG_MAJOR \
     OR_REINDEX_COUNTER=${OR_REINDEX_COUNTER} \
     OR_DISABLE_REINDEX=${OR_DISABLE_REINDEX:-false} \
     POSTGRES_MAX_CONNECTIONS=${POSTGRES_MAX_CONNECTIONS:-50} \