remove circleci

.circleci/config.yml

@@ -1,60 +0,0 @@
-version: 2
-jobs:
-  build:
-    docker:
-      - image: slic3r/appimage-build
-
-    environment:
-      CC: gcc
-      CXX: g++
-
-    working_directory: /build
-    steps:
-      - checkout
-      - run:
-          name: Build with CMake
-          command: |
-            mkdir /build/build
-            cd /build/cmake
-            cmake /build -DCMAKE_INSTALL_PREFIX=/build.Slic3r \
-                         -DCMAKE_PREFIX_PATH=/opt/dependencies/destdir/usr/local \
-                         -DSLIC3R_STATIC=1\
-                         -DSLIC3R_BUILD_TESTS=OFF
-            make -j4 Slic3r
-            cmake --install .
-            pushd /build.Slic3r
-            echo -e '#!/bin/bash\nDIR=$(readlink -f "$0" | xargs dirname)\nexport LD_LIBRARY_PATH="$DIR/bin"\nexec "$DIR/bin/Slic3r" "$@"' > /build.Slic3r/Slic3r
-            chmod u+x Slic3r
-            tar -czf /build/Slic3r.tar.gz .
-            popd
-      - persist_to_workspace:
-          root: /build
-          paths:
-            - Slic3r.tar.gz
-      - store_artifacts:
-          path: /build/Slic3r.tar.gz
-  package_appimage:
-    machine:
-      image: ubuntu-1604:202007-01
-    working_directory: /build
-    steps:
-      - checkout
-      - attach_workspace:
-          at: /tmp/workspace
-      - run:
-          name: Package AppImage
-          command: |
-            chmod +x /build/src/platform/unix/build_appimage.sh
-            pushd /tmp/workspace
-            tar -xzf Slic3r.tar.gz
-            /build/src/platform/unix/build_appimage.sh /build/Slic3r.AppImage
-      - store_artifacts:
-          path: /build/Slic3r.AppImage
-workflows:
-  version: 2
-  build_and_package:
-    jobs:
-      - build
-      - package_appimage:
-          requires:
-            - build