Revert `tests/testdata` changes and address flake8 issues

tests/testdata/hendrycksTest-world_religions-v0-res.json

-{"results": {"hendrycksTest-world_religions": {"acc": 0.21637426900584794, "acc_norm": 0.22807017543859648, "acc_norm_stderr": 0.03218093795602357, "acc_stderr": 0.03158149539338734}}, "versions": {"hendrycksTest-world_religions": 0}}
+{"results": {"hendrycksTest-world_religions": {"acc": 0.21637426900584794, "acc_norm": 0.22807017543859648, "acc_norm_stderr": 0.03218093795602357, "acc_stderr": 0.03158149539338734}}, "versions": {"hendrycksTest-world_religions": 0}}
\ No newline at end of file

tests/testdata/iwslt17-ar-en-v0-greedy_until

-e94d310de91fad7ce36f4cf3305552020221482c5588f2efcefaa019893504f1
+e94d310de91fad7ce36f4cf3305552020221482c5588f2efcefaa019893504f1
\ No newline at end of file

tests/testdata/iwslt17-ar-en-v0-res.json

-{"results": {"iwslt17-ar-en": {"bleu": 0.0, "bleu_stderr": 0.0, "chrf": 0.015049895477752772, "chrf_stderr": 0.0002940315671893584, "ter": 1.0, "ter_stderr": 0.0}}, "versions": {"iwslt17-ar-en": 0}}
+{"results": {"iwslt17-ar-en": {"bleu": 0.0, "bleu_stderr": 0.0, "chrf": 0.015049895477752772, "chrf_stderr": 0.0002940315671893584, "ter": 1.0, "ter_stderr": 0.0}}, "versions": {"iwslt17-ar-en": 0}}
\ No newline at end of file

tests/testdata/iwslt17-en-ar-v0-greedy_until

-b20adbcd2c6d135e28600b427113532c5df624cb3a90e8c5e48715c09a3a38fa
+b20adbcd2c6d135e28600b427113532c5df624cb3a90e8c5e48715c09a3a38fa
\ No newline at end of file

tests/testdata/iwslt17-en-ar-v0-res.json

-{"results": {"iwslt17-en-ar": {"bleu": 0.0, "bleu_stderr": 0.0, "chrf": 0.0, "chrf_stderr": 0.0, "ter": 1.0, "ter_stderr": 0.0}}, "versions": {"iwslt17-en-ar": 0}}
+{"results": {"iwslt17-en-ar": {"bleu": 0.0, "bleu_stderr": 0.0, "chrf": 0.0, "chrf_stderr": 0.0, "ter": 1.0, "ter_stderr": 0.0}}, "versions": {"iwslt17-en-ar": 0}}
\ No newline at end of file

tests/testdata/lambada-v0-loglikelihood

-6829e6a8aa5922e6c92dd31403cc060f242dc0ede4a775e085a70da095ab2e20
+6829e6a8aa5922e6c92dd31403cc060f242dc0ede4a775e085a70da095ab2e20
\ No newline at end of file

tests/testdata/lambada-v0-res.json

-{"results": {"lambada": {"acc": 0.0, "acc_stderr": 0.0, "ppl": 1.6479047769869253, "ppl_stderr": 0.006497321146240192}}, "versions": {"lambada": 0}}
+{"results": {"lambada": {"acc": 0.0, "acc_stderr": 0.0, "ppl": 1.6479047769869253, "ppl_stderr": 0.006497321146240192}}, "versions": {"lambada": 0}}
\ No newline at end of file

tests/testdata/lambada_cloze-v0-loglikelihood

-7655e748b63ae7e9911411d2d2a2577221d6c861ca4448509992541294d689f3
+7655e748b63ae7e9911411d2d2a2577221d6c861ca4448509992541294d689f3
\ No newline at end of file

tests/testdata/lambada_cloze-v0-res.json

-{"results": {"lambada_cloze": {"acc": 0.0, "acc_stderr": 0.0, "ppl": 1.6479047769869253, "ppl_stderr": 0.006497321146240192}}, "versions": {"lambada_cloze": 0}}
+{"results": {"lambada_cloze": {"acc": 0.0, "acc_stderr": 0.0, "ppl": 1.6479047769869253, "ppl_stderr": 0.006497321146240192}}, "versions": {"lambada_cloze": 0}}
\ No newline at end of file

tests/testdata/lambada_mt_de-v0-loglikelihood

-5ad125e1708499832b2cee8c3388f89f9c0277010fd96fbd3359039ce8105984
+5ad125e1708499832b2cee8c3388f89f9c0277010fd96fbd3359039ce8105984
\ No newline at end of file

tests/testdata/lambada_mt_de-v0-res.json

-{"results": {"lambada_mt_de": {"acc": 0.0, "acc_stderr": 0.0, "ppl": 1.6479047769869253, "ppl_stderr": 0.006497321146240192}}, "versions": {"lambada_mt_de": 0}}
+{"results": {"lambada_mt_de": {"acc": 0.0, "acc_stderr": 0.0, "ppl": 1.6479047769869253, "ppl_stderr": 0.006497321146240192}}, "versions": {"lambada_mt_de": 0}}
\ No newline at end of file

tests/testdata/lambada_mt_en-v0-loglikelihood

-6829e6a8aa5922e6c92dd31403cc060f242dc0ede4a775e085a70da095ab2e20
+6829e6a8aa5922e6c92dd31403cc060f242dc0ede4a775e085a70da095ab2e20
\ No newline at end of file

tests/testdata/lambada_mt_en-v0-res.json

-{"results": {"lambada_mt_en": {"acc": 0.0, "acc_stderr": 0.0, "ppl": 1.6479047769869253, "ppl_stderr": 0.006497321146240192}}, "versions": {"lambada_mt_en": 0}}
+{"results": {"lambada_mt_en": {"acc": 0.0, "acc_stderr": 0.0, "ppl": 1.6479047769869253, "ppl_stderr": 0.006497321146240192}}, "versions": {"lambada_mt_en": 0}}
\ No newline at end of file

tests/testdata/lambada_mt_es-v0-loglikelihood

-4a88f4b316c72fe0396c382d6cbb33568ac4d0ad225150d3536635c085359fc9
+4a88f4b316c72fe0396c382d6cbb33568ac4d0ad225150d3536635c085359fc9
\ No newline at end of file

tests/testdata/lambada_mt_es-v0-res.json

-{"results": {"lambada_mt_es": {"acc": 0.0, "acc_stderr": 0.0, "ppl": 1.6479047769869253, "ppl_stderr": 0.006497321146240192}}, "versions": {"lambada_mt_es": 0}}
+{"results": {"lambada_mt_es": {"acc": 0.0, "acc_stderr": 0.0, "ppl": 1.6479047769869253, "ppl_stderr": 0.006497321146240192}}, "versions": {"lambada_mt_es": 0}}
\ No newline at end of file

tests/testdata/lambada_mt_fr-v0-loglikelihood

-5d16f4a0c51dc6d7b6df2ebeba2bbfa51e700b843779b559b3d90183d7b02a11
+5d16f4a0c51dc6d7b6df2ebeba2bbfa51e700b843779b559b3d90183d7b02a11
\ No newline at end of file

tests/testdata/lambada_mt_fr-v0-res.json

-{"results": {"lambada_mt_fr": {"acc": 0.0, "acc_stderr": 0.0, "ppl": 1.6479047769869253, "ppl_stderr": 0.006497321146240192}}, "versions": {"lambada_mt_fr": 0}}
+{"results": {"lambada_mt_fr": {"acc": 0.0, "acc_stderr": 0.0, "ppl": 1.6479047769869253, "ppl_stderr": 0.006497321146240192}}, "versions": {"lambada_mt_fr": 0}}
\ No newline at end of file

tests/testdata/lambada_mt_it-v0-loglikelihood

-fd87c6c5cf4e0499c5f9f80e5bd7ee6a4f3d2991902a0cc3ec9e6eaf22d6760a
+fd87c6c5cf4e0499c5f9f80e5bd7ee6a4f3d2991902a0cc3ec9e6eaf22d6760a
\ No newline at end of file

tests/testdata/lambada_mt_it-v0-res.json

-{"results": {"lambada_mt_it": {"acc": 0.0, "acc_stderr": 0.0, "ppl": 1.6479047769869253, "ppl_stderr": 0.006497321146240192}}, "versions": {"lambada_mt_it": 0}}
+{"results": {"lambada_mt_it": {"acc": 0.0, "acc_stderr": 0.0, "ppl": 1.6479047769869253, "ppl_stderr": 0.006497321146240192}}, "versions": {"lambada_mt_it": 0}}
\ No newline at end of file

tests/testdata/logiqa-v0-loglikelihood

-12495c50454ba5e1ce0753bd18c09aaca516bebd27648d815e37b15229dbf198
+12495c50454ba5e1ce0753bd18c09aaca516bebd27648d815e37b15229dbf198
\ No newline at end of file