Tests: Don't send "Connection: close" header with embedded webserver

Author: amotl

src/crate/client/tests.py

@@ -242,7 +242,6 @@ def do_GET(self):
             payload = self.payload.encode('UTF-8')
             self.send_header("Content-Length", len(payload))
             self.send_header("Content-Type", "application/json; charset=UTF-8")
-            self.send_header("Connection", "close")
             self.end_headers()
             self.wfile.write(payload)