SWF Object can be embeded in your code using following
swfobject.embedSWF(swfUrl, id, width, height, version, installSwfurl,
flashvars, params, attributes, callbackFn)
As you can see it has params as one of its parameter. Params can have menu, id, play, loop, quality, scale, etc.
To remove control menu keep menu as false. In your case, try below code
var params = {
menu: "false"
};
swfobject.embedSWF("http://static.slidesharecdn.com/swf/doc_player.swf", "player", "700", "392", "8", null, flashvars, params, atts);
I am not 100% sure about this as I have not tried it.
For more reference you can look at