sdk/src/com/socialize/LikeUtils.java
public static void unlike (Activity context, String entityKey, LikeDeleteListener listener) {
		proxy.unlike(context, entityKey, listener);
	}
public static void unlike (Activity context, String entityKey, LikeDeleteListener listener) {
		proxy.unlike(context, entityKey, listener);
	}
Removes a like previously created for the current user.
@param context The current context.
@param entityKey The entity that was liked.
@param listener A listener to handle the result.