[elpa] externals/bnf-mode updated (d88eef6 -> 2d1ee12)

[Stefan Monnier]

monnier pushed a change to branch externals/bnf-mode.

      from  d88eef6   Merge pull request #15 from sergeyklay/refactor-tests
       new  ec0774e   Add ability to generate  bnf-mode-autoloads.el file
       new  1da5977   Update documentation
       new  d0f76a6   Add autoloads to clean target
       new  da9109f   Fixed messge for cutom buttercup matcher
       new  fd95ef1   Removed no longer used dependency
       new  3201c2b   Fixed misspelling
       new  b123b2f   codecov.io has been compromised
       new  48eecac   Remove deprecated set-env from GH Actions
       new  57935fc   The cask `go` script will be removed on 2021/06/01.
       new  e2b2725   Merge pull request #17 from sergeyklay/fix/build-package
       new  ba1eaa8   Remove codecov/codecov-action usage
       new  2d1ee12   Remove codecov stuff


Summary of changes:
 .codecov.yml                  | 52 -------------------------------------------
 .elpaignore                   |  1 -
 .gitattributes                |  1 -
 .github/workflows/build.yml   | 15 +++----------
 .github/workflows/release.yml |  6 ++---
 Cask                          |  1 -
 Makefile                      | 24 +++++++++++++++-----
 README.org                    |  1 -
 default.mk                    |  4 +++-
 test/utils.el                 | 12 +++++-----
 10 files changed, 33 insertions(+), 84 deletions(-)
 delete mode 100644 .codecov.yml