removed pyodbc from reqs

ml/requirements.txt

-kmodes==0.11.0
 matplotlib==3.3.4
+seaborn==0.11.2
 numpy==1.19.5
 pandas==1.2.3
 pytest==6.2.2
@@ -9,17 +9,14 @@ Sphinx==3.5.2
 notebook==6.2.0
 streamlit==0.78.0
 tensorflow==2.5.0
+tensorflow-privacy==0.6.2
 openpyxl==3.0.6
 xgboost==1.3.3
-keras-tuner==1.0.2
 shap==0.39.0
+eli5==0.11.0
 fastapi==0.63.0
-uvicorn==0.13.4
 fastapi-jwt-auth==0.5.0
+uvicorn==0.13.4
 PyYAML==5.4.1
-tensorflow-privacy==0.6.2
 imbalanced-learn==0.8.0
-seaborn==0.11.2
-scikit-survival==0.16.0
-eli5==0.11.0
-pyodbc==4.0.32
\ No newline at end of file
+scikit-survival==0.16.0
\ No newline at end of file