Fix mistaken "react-server" condition (facebook#28835)

This is a Fizz server.

Author: sebmarkbage

scripts/rollup/bundles.js

@@ -293,7 +293,6 @@ const bundles = [
     bundleTypes: __EXPERIMENTAL__ ? [FB_WWW_DEV, FB_WWW_PROD] : [],
     moduleType: RENDERER,
     entry: 'react-server-dom-fb/src/ReactDOMServerFB.js',
-    condition: 'react-server',
     global: 'ReactDOMServerStreaming',
     minifyWithProdErrorCodes: false,
     wrapWithModuleBoundaries: false,