Remove unused cuneiform component

It does not build with GCC 8.2

component/cuneiform/buildout.cfg

-[buildout]
-extends =
-  ../cmake/buildout.cfg
-  ../imagemagick/buildout.cfg
-parts = cuneiform
-
-[cuneiform]
-recipe = slapos.recipe.cmmi
-url = http://launchpad.net/cuneiform-linux/1.0/1.0/+download/cuneiform-linux-1.0.0.tar.bz2
-md5sum = 785232ffffad7d82446fbac08a1c3ef9
-location = ${buildout:parts-directory}/${:_buildout_section_name_}
-configure-command =
-  mkdir build && cd build && \
-  ${cmake:location}/bin/cmake \
-    -DCMAKE_INSTALL_RPATH=${:location}/lib64:${:location}/lib \
-    -DCMAKE_INSTALL_PREFIX=${:location} \
-    -DNO_SYSTEM_ENVIRONMENT_PATH=ON \
-    -DCMAKE_INCLUDE_PATH=${imagemagick:location}/include \
-    -DCMAKE_LIBRARY_PATH=${imagemagick:location}/lib \
-    -DCMAKE_INSTALL_RPATH=${:location}/lib64:${:location}/lib:${imagemagick:location}/lib \
-    -DCMAKE_BUILD_TYPE=release \
-    ..
-make-binary =
-  cd build && make