diff --git a/.circleci/config.yml b/.circleci/config.yml
index 1df237fd0..5e08d44bd 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -1,24 +1,5 @@
 version: 2.1
 jobs:
-  test:
-    # This is a parameterized job
-    # https://circleci.com/docs/2.0/reusing-config/#authoring-parameterized-jobs
-    parameters:
-      directory:
-        type: string
-      go-image-tag:
-        type: string
-        default: "1.21-jammy"
-    description: "test at << parameters.directory >>"
-    docker:
-      - image: quay.io/cybozu/golang:<<parameters.go-image-tag>>
-      - image: quay.io/cybozu/etcd:3.5.7.1
-    working_directory: /work
-    steps:
-      - checkout
-      - run: apt-get update
-      - run: make -C << parameters.directory >> check-generate SUDO=
-      - run: make -C << parameters.directory >> test SUDO=
   build:
     # This is a parameterized job
     # https://circleci.com/docs/2.0/reusing-config/#authoring-parameterized-jobs
@@ -171,149 +152,6 @@ jobs:
                       echo "scanning $image:$TAG ..."
                       YAMORY_IMAGE_IDENTIFIER="quay.io/cybozu/$image" YAMORY_IMAGE_NAME="quay.io/cybozu/$image:$TAG" sh -c "$(curl -sSf -L https://mw-receiver.yamory.io/image/script/trivy)"
                   done
-  buildx:
-    # This is a parameterized job
-    # https://circleci.com/docs/2.0/reusing-config/#authoring-parameterized-jobs
-    parameters:
-      container-image:
-        type: string
-      dir:
-        type: string
-        default: ""
-      attach:
-        type: boolean
-        default: false
-      resource-class:
-        type: string
-        default: medium
-    description: "build << parameters.container-image >>"
-    docker:
-      - image: cimg/base:current-20.04
-    resource_class: << parameters.resource-class >>
-    steps:
-      - run:
-          name: Install tools
-          command: |
-            sudo apt-get update
-            sudo apt-get install -y curl jq git
-            CONTAINER_TAG_EXISTS_VERSION=1.0.3
-            curl -fsSL -o container-tag-exists.tar.gz \
-              https://github.com/Hsn723/container-tag-exists/releases/download/v${CONTAINER_TAG_EXISTS_VERSION}/container-tag-exists_${CONTAINER_TAG_EXISTS_VERSION}_linux_amd64.tar.gz
-            sudo tar -xzf container-tag-exists.tar.gz -C /usr/local/bin
-            rm -f container-tag-exists.tar.gz
-            curl -LO https://storage.googleapis.com/container-structure-test/v1.14.0/container-structure-test-linux-amd64 \
-              && chmod +x container-structure-test-linux-amd64 \
-              && sudo mv container-structure-test-linux-amd64 /usr/local/bin/container-structure-test
-      - checkout
-      - when:
-          condition: << parameters.attach >>
-          steps:
-            - attach_workspace:
-                at: ./<< parameters.dir >>/workspace
-      - setup_remote_docker:
-          version: docker24
-      # The binfmt container image is not an official image, so we use a pinned version(qemu-v6.2.0).
-      - run: docker run --rm --privileged tonistiigi/binfmt@sha256:5bf63a53ad6222538112b5ced0f1afb8509132773ea6dd3991a197464962854e --install linux/amd64,linux/arm64/v8
-      - run:
-          name: Check TAG files
-          command: |
-            dir=<< parameters.dir >>
-            if [ "$dir" = "" ]; then dir=<< parameters.container-image >> ; fi
-            image=<< parameters.container-image >>
-            tag=$(cat ${dir}/TAG)
-            c=$(container-tag-exists quay.io/cybozu/$image $tag 2>&1)
-            # The stderr should be either "" or "found".
-            # If the stderr was an error message other than "found", this step must have stopped due to the shell option "-e".
-            if [ "$c" = "" ]; then
-                echo quay.io/cybozu/$image >> BUILDS
-            fi
-      - run:
-          name: Validate consistency between BRANCH and TAG
-          command: |
-            dir=<< parameters.dir >>
-            if [ "$dir" = "" ]; then dir=<< parameters.container-image >> ; fi
-            if [ -e "$dir/NO_TAG_BRANCH_CONSISTENCY" ]; then exit 0; fi
-            ./tag_branch_consistency $dir
-      - run:
-          name: Test container structure
-          command: |
-            if [ ! -f BUILDS ]; then
-                exit 0
-            fi
-            image=<< parameters.container-image >>
-            dir=<< parameters.dir >>
-            if [ "$dir" = "" ]; then dir=<< parameters.container-image >> ; fi
-            if [ ! -e "$dir/container-structure-test.yaml" ]; then exit 0; fi
-            echo "testing container structure: << parameters.container-image >> ..."
-            TAG=$(cat $dir/TAG)
-            for platform in linux/amd64 linux/arm64/v8; do
-              docker context create structure
-              docker buildx create structure --use
-              docker buildx build \
-                --progress plain \
-                --load \
-                --platform $platform \
-                -t quay.io/cybozu/$image:$TAG \
-                ${dir}
-              container-structure-test test \
-                --image quay.io/cybozu/$image:$TAG \
-                --config ${dir}/container-structure-test.yaml
-              docker buildx rm
-              docker context rm structure
-            done
-      - run:
-          name: Build test
-          command: |
-            if [ "${CIRCLE_BRANCH}" = "main" ]; then
-                exit 0
-            fi
-            if [ ! -f BUILDS ]; then
-                exit 0
-            fi
-            echo "building test: << parameters.container-image >> ..."
-            image=<< parameters.container-image >>
-            dir=<< parameters.dir >>
-            if [ "$dir" = "" ]; then dir=<< parameters.container-image >> ; fi
-            docker context create buildx
-            docker buildx create buildx --use
-            docker buildx build \
-              --progress plain \
-              --platform linux/amd64,linux/arm64/v8 \
-              -o type=tar,dest=$image.tar \
-              ${dir}
-      - run:
-          name: Build and Push
-          command: |
-            if [ "${CIRCLE_BRANCH}" != "main" ]; then
-                exit 0
-            fi
-            if [ ! -f BUILDS ]; then
-                exit 0
-            fi
-            docker login -u $QUAY_USER -p $QUAY_PASSWORD quay.io
-            echo
-            echo "building and pushing << parameters.container-image >> ..."
-            image=<< parameters.container-image >>
-            dir=<< parameters.dir >>
-            if [ "$dir" = "" ]; then dir=<< parameters.container-image >> ; fi
-            TAG=$(cat $dir/TAG)
-            if [ -f $dir/BRANCH ]; then
-              if echo $TAG | grep -q -e - ; then
-                echo ===== Skip pushing branch tags for pre-release $TAG =====
-              else
-                BRANCH=$(cat $dir/BRANCH)
-                BRANCH_TAG_OPTION="-t quay.io/cybozu/$image:$BRANCH"
-              fi
-            fi
-            docker context create buildx
-            docker buildx create buildx --use
-            docker buildx build \
-              --progress plain \
-              --push \
-              --platform linux/amd64,linux/arm64/v8 \
-              -t quay.io/cybozu/$image:$TAG \
-              ${BRANCH_TAG_OPTION} \
-              ${dir}
 
 workflows:
   main: