Delete old requirements file

requirements.txt

-git+ssh://git@git.xfel.eu:10022/detectors/cal_db_interactive.git@2.0.1
-git+ssh://git@git.xfel.eu:10022/detectors/nbparameterise.git@0.3
-git+ssh://git@git.xfel.eu:10022/karaboDevices/pyDetLib.git@2.5.6-2.10.0#subdirectory=lib
-Cython == 0.29.21
-Jinja2 == 2.11.2
-astcheck == 0.2.5
-astsearch == 0.1.3
-dill == 0.3.0
-extra_data == 1.2.0
-extra_geom == 1.1.1
-fabio == 0.9.0
-gitpython == 3.1.0
-h5py == 2.10.0
-iminuit == 1.3.8
-ipykernel == 5.1.4
-ipyparallel == 6.2.4
-ipython == 7.12.0
-ipython_genutils == 0.2.0
-jupyter-core == 4.6.1
-jupyter_client == 6.1.7
-jupyter_console == 6.1.0
-karabo_data == 0.7.0
-lxml == 4.5.0
-metadata_client == 3.0.8
-nbclient == 0.5.1
-nbconvert == 5.6.1
-nbformat == 5.0.7
-notebook == 6.1.5
-numpy == 1.19.1
-pre-commit == 2.10.0
-prettytable == 0.7.2
-princess == 0.2
-pypandoc == 1.4
-python-dateutil == 2.8.1
-pyyaml == 5.3
-pyzmq == 19.0.0
-requests==2.22.0
-scikit-learn == 0.22.2.post1
-sharedmem == 0.3.8
-sphinx == 1.8.5
-tabulate == 0.8.6
-traitlets == 4.3.3
-unittest-xml-reporting == 3.0.2
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