Removed typing information to support latest flatland release

1 job for master in 2 minutes and 3 seconds (queued for 46 seconds)
Status Job ID Name Coverage
  Test
failed #13081
test

00:02:03

 
Name Stage Failure
failed
test Test
CondaEnvException: Pip failed

Ran pip subprocess with arguments:
[u'/opt/conda/envs/flatland-baseline-cpu-env/bin/python', '-m', 'pip', 'install', '-U', '-r', '/builds/flatland/neurips2020-flatland-baselines/tmpRTcE4a.requirements.txt']
Pip subprocess output:
Collecting flatland-rl==2.2.1
Downloading flatland-rl-2.2.1.tar.gz (5.1 MB)

ERROR: Job failed: command terminated with exit code 1