Remove some unused code from the tests

tests/pexpects/fkr.py

@@ -1,12 +1,9 @@
 #!/usr/bin/env python3
 from pexpect_helper import SpawnedProc
-import subprocess
-import sys
 from time import sleep
 import os
 
 os.environ["fish_escape_delay_ms"] = "10"
-SpawnedProc()
 sp = SpawnedProc()
 send, sendline, sleep, expect_prompt, expect_re, expect_str = (
     sp.send,