readme: remove useless badge

README.md

@@ -6,7 +6,6 @@ HPP-FCL — An extension of the Flexible Collision Library
   <a href="http://projects.laas.fr/gepetto/doc/humanoid-path-planner/hpp-fcl/master/coverage/"><img src="https://gepgitlab.laas.fr/humanoid-path-planner/hpp-fcl/badges/master/coverage.svg?job=doc-coverage" alt="Coverage report"/></a>
   <a href="https://anaconda.org/conda-forge/hpp-fcl"><img src="https://img.shields.io/conda/dn/conda-forge/hpp-fcl.svg" alt="Conda Downloads"/></a>
   <a href="https://anaconda.org/conda-forge/hpp-fcl"><img src="https://img.shields.io/conda/vn/conda-forge/hpp-fcl.svg" alt="Conda Version"/></a>
-  <a href="https://conda.anaconda.org/conda-forge"><img src="https://anaconda.org/conda-forge/hpp-fcl/badges/installer/conda.svg" alt="Anaconda-Server Badge"/></a>
   <a href="https://badge.fury.io/py/hpp-fcl"><img src="https://badge.fury.io/py/hpp-fcl.svg" alt="PyPI version" height="18"></a>
 </p>