py : remove superfluous import statements (#4076)

Signed-off-by: Jiri Podivin <jpodivin@gmail.com>
Co-authored-by: Jiri Podivin <jpodivin@redhat.com>

tests/test-tokenizer-0-falcon.py

@@ -1,7 +1,5 @@
 # tests with BPE tokenizer
 
-import os
-import sys
 import argparse
 
 from transformers import AutoTokenizer

tests/test-tokenizer-0-llama.py

@@ -1,7 +1,5 @@
 # tests with SPM tokenizer
 
-import os
-import sys
 import argparse
 
 from sentencepiece import SentencePieceProcessor