Devices,hosts, and links can be blocked and kicked off with the network configuration api

Change-Id: I68d427f4886a7b63475df8d35383e2e347946946
diff --git a/core/api/src/main/java/org/onosproject/net/link/LinkAdminService.java b/core/api/src/main/java/org/onosproject/net/link/LinkAdminService.java
index 2e308b4..a0b5e1e 100644
--- a/core/api/src/main/java/org/onosproject/net/link/LinkAdminService.java
+++ b/core/api/src/main/java/org/onosproject/net/link/LinkAdminService.java
@@ -39,4 +39,12 @@
      */
     void removeLinks(DeviceId deviceId);
 
+    /**
+     * Removes all links between between the specified src and
+     * dst connection points.
+     *
+     * @param src link source
+     * @param dst link destination
+     */
+    void removeLink(ConnectPoint src, ConnectPoint dst);
 }