ci: Try all ASan options

Author: chfast

circle.yml

@@ -230,7 +230,6 @@ commands:
           working_directory: ~/build
           command: |
             set +e
-            export ASAN_OPTIONS=detect_invalid_pointer_pairs=1  # TODO: value 2 causes failures in standard library.
             expected="  PASSED <<parameters.expected_passed>>, FAILED <<parameters.expected_failed>>, SKIPPED <<parameters.expected_skipped>>."
             result=$(bin/fizzy-spectests <<#parameters.skip_validation>>--skip-validation<</parameters.skip_validation>> json | tail -1)
             echo $result