simplified requirements (#7)

- simplified requirements (8b660d65b30a1d4272ed57ede4ff48a9528d510b)

requirements.txt

@@ -8,11 +8,7 @@ charset-normalizer==2.0.9
 click==7.1.2
 cycler==0.11.0
 cymem==2.0.6
-en-core-web-lg @ https://github.com/explosion/spacy-models/releases/download/en_core_web_lg-3.0.0/en_core_web_lg-3.0.0-py3-none-any.whl
-en-core-web-md @ https://github.com/explosion/spacy-models/releases/download/en_core_web_md-3.0.0/en_core_web_md-3.0.0-py3-none-any.whl
-en-core-web-sm @ https://github.com/explosion/spacy-models/releases/download/en_core_web_sm-3.0.0/en_core_web_sm-3.0.0-py3-none-any.whl
-en-ner-bc5cdr-md @ https://s3-us-west-2.amazonaws.com/ai2-s2-scispacy/releases/v0.4.0/en_ner_bc5cdr_md-0.4.0.tar.gz
-en-ner-bionlp13cg-md @ https://s3-us-west-2.amazonaws.com/ai2-s2-scispacy/releases/v0.4.0/en_ner_bionlp13cg_md-0.4.0.tar.gz
+altair<5
 et-xmlfile==1.1.0
 flatbuffers==2.0
 fonttools==4.28.5
@@ -27,8 +23,6 @@ importlib-metadata==4.8.2
 Jinja2==3.0.3
 jmespath==0.10.0
 joblib==1.1.0
-keras==2.7.0
-Keras-Preprocessing==1.1.2
 kiwisolver==1.3.2
 langcodes==3.3.0
 libclang==12.0.0
@@ -63,16 +57,10 @@ scipy==1.7.3
 six==1.16.0
 sklearn==0.0
 smart-open==5.2.1
-spacy==3.0.7
-spacy-legacy==3.0.8
-spacy-loggers==1.0.1
 srsly==2.4.2
 tensorboard==2.7.0
 tensorboard-data-server==0.6.1
 tensorboard-plugin-wit==1.8.0
-tensorflow==2.7.0
-tensorflow-estimator==2.7.0
-tensorflow-io-gcs-filesystem==0.23.0
 termcolor==1.1.0
 thinc==8.0.13
 threadpoolctl==3.0.0