contrib/ci.inria.fr: limit email recipients

contrib/ci.inria.fr/Jenkinsfile-windows

@@ -1,7 +1,7 @@
 #!groovy
 // StarPU --- Runtime system for heterogeneous multicore architectures.
 //
-// Copyright (C) 2018                                CNRS
+// Copyright (C) 2018, 2019                          CNRS
 //
 // StarPU is free software; you can redistribute it and/or modify
 // it under the terms of the GNU Lesser General Public License as published by
@@ -130,8 +130,7 @@ pipeline
 			emailext(body: '${DEFAULT_CONTENT}',
 				 subject: '${DEFAULT_SUBJECT}',
 				 replyTo: '$DEFAULT_REPLYTO',
-				 to: '$DEFAULT_RECIPIENTS',
-				 recipientProviders: [[$class: 'CulpritsRecipientProvider'],[$class: 'RequesterRecipientProvider']])
+				 to: '$DEFAULT_RECIPIENTS')
 		}
 	}
 }