Update README.rst

Author: hattya

README.rst

@@ -7,9 +7,6 @@ python-indent.vim is a Vim indent plugin for Python which complies with
 .. image:: https://github.com/hattya/python-indent.vim/actions/workflows/ci.yml/badge.svg
    :target: https://github.com/hattya/python-indent.vim/actions/workflows/ci.yml
 
-.. image:: https://semaphoreci.com/api/v1/hattya/python-indent-vim/branches/master/badge.svg
-   :target: https://semaphoreci.com/hattya/python-indent-vim
-
 .. image:: https://ci.appveyor.com/api/projects/status/j20153feidmt9vai/branch/master?svg=true
    :target: https://ci.appveyor.com/project/hattya/python-indent-vim