Revert "Bump cherrypy from 18.8.0 to 18.9.0 (#2266)"

This reverts commit faef9a94c4.

lib/cherrypy/test/test_http.py

@@ -136,9 +136,6 @@ class HTTPTests(helper.CPWebCase):
         self.assertStatus(200)
         self.assertBody(b'Hello world!')
 
-        response.close()
-        c.close()
-
         # Now send a message that has no Content-Length, but does send a body.
         # Verify that CP times out the socket and responds
         # with 411 Length Required.
@@ -162,9 +159,6 @@ class HTTPTests(helper.CPWebCase):
         self.status = str(response.status)
         self.assertStatus(411)
 
-        response.close()
-        c.close()
-
     def test_post_multipart(self):
         alphabet = 'abcdefghijklmnopqrstuvwxyz'
         # generate file contents for a large post
@@ -190,9 +184,6 @@ class HTTPTests(helper.CPWebCase):
         parts = ['%s * 65536' % ch for ch in alphabet]
         self.assertBody(', '.join(parts))
 
-        response.close()
-        c.close()
-
     def test_post_filename_with_special_characters(self):
         """Testing that we can handle filenames with special characters.
 
@@ -226,9 +217,6 @@ class HTTPTests(helper.CPWebCase):
             self.assertStatus(200)
             self.assertBody(fname)
 
-            response.close()
-            c.close()
-
     def test_malformed_request_line(self):
         if getattr(cherrypy.server, 'using_apache', False):
             return self.skip('skipped due to known Apache differences...')
@@ -276,9 +264,6 @@ class HTTPTests(helper.CPWebCase):
         self.body = response.fp.read(20)
         self.assertBody('Illegal header line.')
 
-        response.close()
-        c.close()
-
     def test_http_over_https(self):
         if self.scheme != 'https':
             return self.skip('skipped (not running HTTPS)... ')