MDEV-8050 sphinx test cases cannot run with sphinxsearch-2.2.6

remove/replace deprecated options

mysql-test/suite/sphinx/my.cnf

@@ -16,7 +16,6 @@ mem_limit = 32M
 [searchd]
 read_timeout = 5
 max_children = 30
-max_matches = 1000
 seamless_rotate = 1
 preopen_indexes = 0
 unlink_old = 1
@@ -24,7 +23,7 @@ log = @ENV.MYSQLTEST_VARDIR/searchd/sphinx-searchd.log
 query_log = @ENV.MYSQLTEST_VARDIR/searchd/sphinx-query.log
 #log-error = @ENV.MYSQLTEST_VARDIR/searchd/sphinx.log
 pid_file = @ENV.MYSQLTEST_VARDIR/run/searchd.pid
-port = @ENV.SPHINXSEARCH_PORT
+listen = @ENV.SPHINXSEARCH_PORT
 
 [ENV]
 SPHINXSEARCH_PORT = @OPT.port