Removed Git LFS from Docker and Docs

Dockerfile

@@ -7,7 +7,6 @@ RUN apt-get --allow-releaseinfo-change update && apt-get upgrade -y && \
     build-essential \
     libz-dev \
     swig \
-    git-lfs \
     unzip \
     cmake && \
     apt-get clean && rm -rf /var/lib/apt/lists/*

docs/source/install/installing_mala.rst

@@ -37,17 +37,13 @@ The examples and tests need additional data to run. The MALA team provides a
 to check out the correct tag for the data repository, since the data repository
 itself is subject to ongoing development as well.
 
-Also make sure to have the `Git LFS <https://git-lfs.com/>`_ installed on your
-machine, since the data repository operates using Git LFS to handle large
-binary files for example training data. 
-
 * Download data repository and check out correct tag:
 
 .. code-block:: bash
 
     git clone https://github.com/mala-project/test-data ~/path/to/data/repo
     cd ~/path/to/data/repo
-    git checkout v1.7.0
+    git checkout v1.7.8
 
 * Export the path to that repo by ``export MALA_DATA_REPO=~/path/to/data/repo``