[CI] Remove CMake install from Clang sanitise build.

Author: vyazelenko

.github/workflows/ci-low-cadence.yml

@@ -271,9 +271,6 @@ jobs:
           sudo add-apt-repository "deb http://apt.llvm.org/focal/ llvm-toolchain-focal-${{ matrix.version }} main"
           sudo apt-get update
           sudo apt-get install -y clang-${{ matrix.version }} libstdc++-7-dev libbsd-dev uuid-dev libidn11
-          curl --retry ${INSTALL_COMPILER_RETRIES} -O -L https://github.com/Kitware/CMake/releases/download/v${CMAKE_VERSION}/cmake-${CMAKE_VERSION}-Linux-x86_64.tar.gz
-          tar xf cmake-${CMAKE_VERSION}-Linux-x86_64.tar.gz
-          echo "cmake-${CMAKE_VERSION}-Linux-x86_64/bin" >> $GITHUB_PATH
       - name: Build
         run: cppbuild/cppbuild --sanitise-build --c-warnings-as-errors --cxx-warnings-as-errors --slow-system-tests
       - name: Copy test logs