@Override
    public RemovePermissionResult removePermission(RemovePermissionRequest request) {
        request = beforeClientExecution(request);
        return executeRemovePermission(request);
    }
<p>
Removes a statement from a topic's access control policy.
</p>
<note>
<p>
To remove the ability to change topic permissions, you must deny permissions to the <code>AddPermission</code>,
<code>RemovePermission</code>, and <code>SetTopicAttributes</code> actions in your IAM policy.
</p>
</note>

@param removePermissionRequest
       Input for RemovePermission action.
@return Result of the RemovePermission operation returned by the service.
@throws InvalidParameterException
        Indicates that a request parameter does not comply with the associated constraints.
@throws InternalErrorException
        Indicates an internal service error.
@throws AuthorizationErrorException
        Indicates that the user has been denied access to the requested resource.
@throws NotFoundException
        Indicates that the requested resource does not exist.
@sample AmazonSNS.RemovePermission
@see <a href="http://docs.aws.amazon.com/goto/WebAPI/sns-2010-03-31/RemovePermission" target="_top">AWS API
     Documentation</a>
aws-java-sdk-sns/src/main/java/com/amazonaws/services/sns/AmazonSNSClient.java