The phrase "rendering superfluous" is correct and usable in written English.
You can use it to describe a situation when the efforts of one person or group have rendered the efforts of another person or group unnecessary. For example, "The new system of automation has rendered the previous manual effort superfluous."
In "The Tragedy of the Devil" Lucifer not only loses out but is apparently rendered superfluous.
The fat that popular persuasion attributes to alcohol is fat derived from other foods, whose calories have been replaced, and rendered superfluous, by alcohol.
Time and again, Verdi's musical-dramatic points are rendered superfluous, overridden by Mr. Tcherniakov's clinical construct, ingenious though it is.
Justice Ginsburg cited a general principle of statutory interpretation that calls for statutes to be interpreted so that no clause is rendered superfluous.
Montesquieu thought that commerce, which renders "superfluous things useful and useful ones necessary," would "cure destructive prejudices" and promote "communication among peoples".
In so doing, it rendered superfluous all the bottom-up organization and structures of British working- class life, making people and communities dependent on state welfare rather than on each other.
The U.S. discovered that, at least in the first half Wednesday night, when its midfield was rendered superfluous and its defense was exposed to wave after wave of scoring chances by the guys in the canary yellow jerseys.
"There is not the slightest chance," Kela writes of the Maoist Adivasis, one of the peoples rendered superfluous by industrial capitalism, "that they will ever become a factory proletariat".
Such a reading of the law, the majority held, rendered superfluous the PDA's requirement that an employer treat pregnant workers "the same for all employment-related purposes...as other persons not so affected but similar in their ability or inability to work" and ignored "a key congressional objective in passing the Act".
But Lin's ascent is perhaps best traced through the Twitter account of the man he has rendered superfluous in the eyes of many Knicks fans: @Baron_Davis, a former All-Star point guard who has missed the entire season so far with back and elbow injuries.
