test: don't run spec tests with stack

We cannot handle postgis and other postgresql dependencies with
stack.

Also delete test/with_tmp_db since it's no longer used.

test/with_tmp_db

@@ -1,96 +0,0 @@
-#!/usr/bin/env bash
-set -euo pipefail
-
-keeptmp=${KEEP_TMP:-""}
-
-usage() {
-  cat << EOF
-
-USAGE: $0 COMMAND
-
-Runs the given COMMAND with the PGRST_DB_URI environment variable
-set to a temporary database that is ready for running the PostgREST test suite.
-
-You'll need to have the Postgres binaries 'initdb', 'pg_ctl' and 'psql' on your
-PATH.
-
-Example:
-
-    $0 stack test
-
-    # Or, for when inside nix-shell
-    $0 cabal v2-test
-
-If KEEP_TMP is set (e.g. to "1"), the temporary directory will not be deleted
-after exit. The log files in that directory might be useful for debugging
-purposes.
-
-EOF
-  exit 1
-}
-
-if [ "$#" -lt 1 ]; then
-  echo "Please provide a command to be run with the temporary database."
-  usage
-fi
-
-# All data will be stored in a temporary directory.
-tmpdir="$(mktemp -d)"
-
-if [ -n "$keeptmp" ]; then
-  echo "The temporary directory at $tmpdir will be preserved after exit."
-else
-  trap 'rm -rf "$tmpdir"' sigint sigterm exit
-fi
-
-dblog="$tmpdir/db.log"
-setuplog="$tmpdir/setup.log"
-
-log() {
-  echo "$1" >> "$setuplog"
-}
-
-mkdir -p "$tmpdir"/{db,socket}
-
-export PGDATA="$tmpdir/db"
-export PGHOST="$tmpdir/socket"
-export PGUSER=postgrest_test_authenticator
-export PGDATABASE=postgres
-export DB_URI="postgresql:///$PGDATABASE?host=$PGHOST&user=$PGUSER"
-export PGRST_DB_URI="$DB_URI"
-export PGRST_DB_SCHEMAS="test"
-export PGRST_DB_ANON_ROLE="postgrest_test_anonymous"
-
-log "Initializing database cluster..."
-# We try to make the database cluster as independent as possible from the host
-# by specifying the timezone, locale and encoding.
-PGTZ=UTC initdb --no-locale --encoding=UTF8 --nosync -U "$PGUSER" --auth=trust \
-  >> "$setuplog"
-
-log "Starting the database cluster..."
-# Instead of listening on a local port, we will listen on a unix domain socket.
-pg_ctl -l "$dblog" -w start -o "-F -c listen_addresses=\"\" -k $PGHOST" \
-  >> "$setuplog"
-
-stop() {
-  log "Stopping the database cluster..."
-  pg_ctl stop -m i >> "$setuplog"
-
-  if [ -n "$keeptmp" ]; then
-    echo "Keeping the temporary directory at $tmpdir"
-  else
-    rm -rf "$tmpdir"
-  fi
-}
-
-trap stop EXIT
-
-log "Loading fixtures..."
-psql -v ON_ERROR_STOP=1 -f test/spec/fixtures/load.sql >> "$setuplog"
-
-log "Done. Running command..."
-# Run the command that was given as an argument. The `exit` trap above will
-# make sure that the database is shut down and the temporary directory is
-# deleted when the command is done. This is also why we don't `exec` the
-# command - our trap would be lost if we did that.
-("$@")