While working with plugins sometimes we need to change the default values and attributes of the plugin which may be lost as soon as the plugin creator add the update to wordpress.
For to disable the auto update or hiide update message from the admin we can add the follwing line in finction.php .
function filter_plugin_updates( $value ) {
unset( $value->response['plugin-directory-name/plugin-file.php'] );
return $value;
}
add_filter( 'site_transient_update_plugins', 'filter_plugin_updates' );
Here plugin-directory-name is the plugin folder name you want to disable and plugin-file.php is the main file of the plugin.
Source : http://wordpress.stackexchange.com/questions/25358/turn-off-auto-update-for-single-plugin