Docker: removed alicevision from xenial as Eigen >=3.3 is required

docker/xenial/Dockerfile

@@ -66,55 +66,6 @@ RUN cd libpointmatcher && \
     cd && \
     rm -r libpointmatcher
 
-# AliceVision
-RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y \
-      libsuitesparse-dev \
-      libceres-dev \
-      xorg-dev \
-      libglu1-mesa-dev \
-      wget
-RUN git clone https://github.com/OpenImageIO/oiio.git
-RUN cd oiio && \
-    git checkout Release-2.0.12 && \
-    mkdir build && \
-    cd build && \
-    cmake .. && \
-    make -j$(nproc) && \
-    make install && \
-    cd && \
-    rm -r oiio
-RUN git clone https://github.com/alembic/alembic.git
-RUN cd alembic && \
-    git checkout 1.7.12 && \
-    mkdir build && \
-    cd build && \
-    cmake .. && \
-    make -j$(nproc) && \
-    make install && \
-    cd && \
-    rm -r alembic
-RUN git clone https://github.com/alicevision/geogram.git
-RUN cd geogram && \
-    git checkout v1.7.1 && \
-    ./configure.sh && \
-    cd build/Linux64-gcc-dynamic-Release && \
-    make -j$(nproc) && \
-    make install && \
-    cd && \
-    rm -r geogram
-RUN git clone https://github.com/alicevision/AliceVision.git --recursive
-RUN cd AliceVision && \
-    git checkout v2.2.0 && \
-    wget https://gist.githubusercontent.com/matlabbe/469bba5e7733ad6f2e3d7857b84f1f9e/raw/edaa88ed38344219af1cc919a5597f5a74445336/alice_vision_eigen.patch && \
-    git apply alice_vision_eigen.patch && \
-    mkdir build && \
-    cd build && \
-    cmake -DALICEVISION_USE_CUDA=OFF .. && \
-    make -j$(nproc) && \
-    make install && \
-    cd && \
-    rm -r AliceVision
-
 # Clone source code
 ARG CACHE_DATE=2016-01-01
 RUN git clone https://github.com/introlab/rtabmap.git