Remove port 80 from tests config for local DDEV environments (#23678)

This breaks system tests where it's added to the hostname when configured even when port 80 is the default,
breaking the mechanism in `TestRequest\Response::replacePiwikUrl` when it's searching for matomo.ddev.site:80
and response contains just matomo.ddev.site.

Author: michalkleiner

.ddev/commands/host/matomo_init_tests

@@ -10,8 +10,7 @@ ddev matomo:console config:set \
   'database_tests.username="db"' \
   'database_tests.password="db"' \
   'tests.http_host="matomo.ddev.site"' \
-  'tests.request_uri="/"' \
-  'tests.port=80'
+  'tests.request_uri="/"'
 
 echo "Copy UI tests config file ..."
 echo "@see https://developer.matomo.org/guides/tests-ui#configuring-ui-tests"