ci: remove legacy system test runner template

.gitlab-ci.yml

@@ -404,22 +404,6 @@ cross-version-config-tests:
   after_script:
     - *display_pytest_failures
 
-.system_test_legacy: &system_test_legacy
-  script:
-    - cd bin/tests/system
-    - make -j${TEST_PARALLEL_JOBS:-1} -k check V=1
-    - if git rev-parse > /dev/null 2>&1; then ( ! grep "^I:.*:file.*not removed$" *.log ); fi
-    - '( ! grep -F "grep: warning:" *.log )'
-  after_script:
-    - test -d bind-* && cd bind-*
-    - REALSOURCEDIR="$PWD"
-    - test -n "${OUT_OF_TREE_WORKSPACE}" && cd "${OUT_OF_TREE_WORKSPACE}"
-    - cat bin/tests/system/test-suite.log
-    - find bin/tests/system -name "*dig.*" | xargs grep "error" || true
-    - *find_python
-    - >
-      "$PYTHON" "$REALSOURCEDIR"/bin/tests/convert-trs-to-junit.py . > "$CI_PROJECT_DIR"/junit.xml
-
 .system_test: &system_test_job
   <<: *system_test_common
   artifacts: