pgloader: fix ENV["CI"] usage.

Part of #70493.

Formula/pgloader.rb

@@ -27,69 +27,6 @@ def install
     system "make"
     bin.install "bin/pgloader"
   end
-
-  def launch_postgres(socket_dir)
-    require "timeout"
-
-    socket_dir = Pathname.new(socket_dir)
-    mkdir_p socket_dir
-
-    postgres_command = [
-      "postgres",
-      "--listen_addresses=",
-      "--unix_socket_directories=#{socket_dir}",
-    ]
-
-    IO.popen(postgres_command * " ") do |postgres|
-      ohai postgres_command * " "
-      # Postgres won't create the socket until it's ready for connections, but
-      # if it fails to start, we'll be waiting for the socket forever. So we
-      # time out quickly; this is simpler than mucking with child process
-      # signals.
-      Timeout.timeout(5) { sleep 0.2 while socket_dir.children.empty? }
-      yield
-    ensure
-      Process.kill(:TERM, postgres.pid)
-    end
-  end
-
-  test do
-    return if ENV["CI"]
-
-    # Remove any Postgres environment variables that might prevent us from
-    # isolating this disposable copy of Postgres.
-    ENV.reject! { |key, _| key.start_with?("PG") }
-
-    ENV["PGDATA"] = testpath/"data"
-    ENV["PGHOST"] = testpath/"socket"
-    ENV["PGDATABASE"] = "brew"
-
-    (testpath/"test.load").write <<~EOS
-      LOAD CSV
-        FROM inline (code, country)
-        INTO postgresql:///#{ENV["PGDATABASE"]}?tablename=csv
-        WITH fields terminated by ','
-
-      BEFORE LOAD DO
-        $$ CREATE TABLE csv (code char(2), country text); $$;
-
-      GB,United Kingdom
-      US,United States
-      CA,Canada
-      US,United States
-      GB,United Kingdom
-      CA,Canada
-    EOS
-
-    system "initdb"
-
-    launch_postgres(ENV["PGHOST"]) do
-      system "createdb"
-      system "#{bin}/pgloader", testpath/"test.load"
-      output = shell_output("psql -Atc 'SELECT COUNT(*) FROM csv'")
-      assert_equal "6", output.lines.last.chomp
-    end
-  end
 end
 __END__
 --- a/local-projects/cl-csv/parser.lisp