Remove Dead Code in WWW JS

[facebook-github-bot]

Reviewed By: bhamodi

Differential Revision: D86593830

[react-sizebot]

Comparing: 5a9921b...a8beb1b

Critical size changes

Includes critical production bundles, as well as any change greater than 2%:

Name	+/-	Base	Current	+/- gzip	Base gzip	Current gzip
oss-stable/react-dom/cjs/react-dom.production.js	=	6.68 kB	6.68 kB	=	1.83 kB	1.83 kB
oss-stable/react-dom/cjs/react-dom-client.production.js	=	608.07 kB	608.07 kB	=	107.68 kB	107.69 kB
oss-experimental/react-dom/cjs/react-dom.production.js	=	6.69 kB	6.69 kB	=	1.83 kB	1.83 kB
oss-experimental/react-dom/cjs/react-dom-client.production.js	=	665.99 kB	665.99 kB	=	117.39 kB	117.39 kB
facebook-www/ReactDOM-prod.classic.js	=	693.36 kB	693.36 kB	=	122.02 kB	122.02 kB
facebook-www/ReactDOM-prod.modern.js	=	683.78 kB	683.78 kB	=	120.40 kB	120.40 kB

Significant size changes

Includes any change greater than 0.2%:

(No significant changes)

Generated by 🚫 dangerJS against a8beb1b