#707: remove eigen from kokkos-only pipeline

.github/workflows/ci-kokkos.yml

@@ -66,12 +66,6 @@ jobs:
           path: pressio-ops
           ref: develop
 
-      - name: Preparing environment
-        run: |
-          wget https://gitlab.com/libeigen/eigen/-/archive/${{ env.eigen_version }}/eigen-${{ env.eigen_version }}.tar.gz \
-          && mkdir -p /eigen \
-          && tar -xf eigen-${{ env.eigen_version }}.tar.gz -C /eigen
-
       - name: Configure
         run: |
           cmake -B builddir \
@@ -80,13 +74,12 @@ jobs:
             -D CMAKE_C_COMPILER:FILEPATH=$CC \
             -D CMAKE_CXX_COMPILER:FILEPATH=$CXX \
             -D PRESSIO_ENABLE_TESTS:BOOL=ON \
-            -D PRESSIO_ENABLE_TPL_EIGEN:BOOL=ON \
+            -D PRESSIO_ENABLE_TPL_EIGEN:BOOL=OFF \
             -D PRESSIO_ENABLE_TPL_MPI:BOOL=OFF \
             -D PRESSIO_ENABLE_TPL_KOKKOS:BOOL=ON \
             -D Kokkos_ROOT=/kokkos/install \
             -D KokkosKernels_ROOT=/kokkos-kernels/install \
             -D PRESSIO_ENABLE_DEBUG_PRINT=ON \
-            -D EIGEN_INCLUDE_DIR=/eigen/eigen-${{ env.eigen_version }} \
             -D CMAKE_INSTALL_PREFIX:PATH=${PRESSIO_INSTALL_DIR} \
             -D CMAKE_CXX_FLAGS='-Wall -Werror'
 
@@ -98,9 +91,7 @@ jobs:
         run: |
           $CXX \
             --std=c++17 \
-            -DPRESSIO_ENABLE_TPL_EIGEN    \
             -DPRESSIO_ENABLE_TPL_KOKKOS \
-            -I/eigen/eigen-${{ env.eigen_version }} \
             -I/kokkos/install/include \
             -I/kokkos-kernels/install/include \     \
             -I${GITHUB_WORKSPACE}/pressio-ops/include \
@@ -113,7 +104,6 @@ jobs:
           $CXX \
             --std=c++17 \
             -DPRESSIO_ENABLE_TPL_KOKKOS \
-            -I/eigen/eigen-${{ env.eigen_version }} \
             -I/kokkos/install/include \
             -I/kokkos-kernels/install/include \
             -I${GITHUB_WORKSPACE}/pressio-ops/include \