diff -r 7d6f2526244a -r 197a85a35cba src/net/java/otr4j/OtrEngineHost.java
--- a/src/net/java/otr4j/OtrEngineHost.java	Sun Mar 15 17:28:04 2015 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,31 +0,0 @@
-/*
- * otr4j, the open source java otr library.
- *
- * Distributable under LGPL license.
- * See terms of license at gnu.org.
- */
-package net.java.otr4j;
-
-import java.security.KeyPair;
-
-import net.java.otr4j.session.SessionID;
-
-/**
- * 
- * This interface should be implemented by the host application. It is required
- * for otr4j to work properly.
- * 
- * @author George Politis
- * 
- */
-public abstract interface OtrEngineHost {
-	public abstract void injectMessage(SessionID sessionID, String msg);
-
-	public abstract void showWarning(SessionID sessionID, String warning);
-
-	public abstract void showError(SessionID sessionID, String error);
-
-	public abstract OtrPolicy getSessionPolicy(SessionID sessionID);
-
-	public abstract KeyPair getKeyPair(SessionID sessionID);
-}