base image cleanup: remove pip packages that are available in EBRAINS kernel

base/requirements.txt

@@ -2,14 +2,9 @@ beautifulsoup4==4.10.0
 bluepyopt==1.11.5
 bokeh==2.4.2
 Cython==0.29.26
-cffi==1.14.5
-cryptography==36.0.1
 ebrains-drive==0.5.0
 elephant==0.10.0
-h5py==3.6.0
 ipympl==0.8.5
-ipywidgets==7.6.5
-jupyterlab-widgets==1.0.2
 jupyterlab-topbar==0.6.1
 jupyterlab-system-monitor==0.8.0
 jupyterhub==1.5.0
@@ -18,7 +13,6 @@ jupyterlab-git==0.34.1
 jupyter-server==1.13.5
 lazyarray==0.5.1
 lxml==4.7.1
-matplotlib==3.5.3
 mpi4py==3.1.3
 nbdime==3.1.1
 nbgitpuller==1.0.2
@@ -26,14 +20,8 @@ nbresuse==0.4.0
 neo==0.10.0
 neurom==3.1.0
 nglview==3.0.3
-nibabel==3.2.1
-numba==0.56.4
-numexpr==2.8.1
-numpy==1.23.5
-pandas==1.3.5
 patsy==0.5.2
 plotly==5.5.0
-Pygments==2.11.2
 python-swiftclient==3.13.0
 PyJWT==2.3.0
 pyOpenSSL==22.0.0 # TODO: Issue with 22.1 https://github.com/pyca/pyopenssl/issues/1154
@@ -42,9 +30,6 @@ requests-oauthlib==1.3.0
 rise==5.7.1
 rpy2==3.4.5
 scikit-image==0.19.1
-scikit-learn==1.0.2
-scipy==1.10.1
-seaborn==0.11.2
 statsmodels==0.13.1
 sympy==1.9
 tvb-ext-bucket==0.2.0
@@ -52,6 +37,5 @@ tvb-ext-unicore==1.1.0
 tvb-widgets==1.2.0
 tvb-ext-xircuits==1.0.2
 vincent==0.4.4
-widgetsnbextension==3.5.2
 xlrd==2.0.1
 git+https://github.com/HumanBrainProject/clb-nb-utils.git