CI: remove ubuntu 18.04

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ec4528799abbe86eaf92e6b1536b91765f88f78a..6f512854382c37d288285526854f9a48d121e3fc 100644 (file)
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -169,15 +169,6 @@ jobs:
         software-properties-common \
         quilt
 
-    - name: Install LLVM 15 for 18.04
-      if: ${{ matrix.os.code == 'ubuntu1804' && matrix.env.CC == 'clang' }}
-      run: |
-        wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add
-        sudo apt-add-repository "deb http://apt.llvm.org/bionic/ llvm-toolchain-bionic-15 main"
-        sudo apt-get install ${APT_OPTS} clang-15 llvm-15 gdb libclang-rt-15-dev
-        sudo update-alternatives --install /usr/bin/clang clang /usr/bin/clang-15 60 && sudo update-alternatives --set clang /usr/bin/clang-15
-        sudo update-alternatives --install /usr/bin/llvm-symbolizer llvm-symbolizer /usr/bin/llvm-symbolizer-15 60 && sudo update-alternatives --set llvm-symbolizer /usr/bin/llvm-symbolizer-15
-
     - name: Install LLVM 15 for 20.04
       if: ${{ matrix.os.code == 'ubuntu2004' && matrix.env.CC == 'clang' }}
       run: |