Revert "Hide Portals When they aren't wrapped in a host component when Parent Suspends"

[lunaruan]

Reverts #16992

[sizebot]

Details of bundled changes.

Comparing: 3a2b5f1...0059d4a

react-art

File	Filesize Diff	Gzip Diff	Prev Size	Current Size	Prev Gzip	Current Gzip	ENV
react-art.development.js	-0.0%	-0.0%	669.47 KB	669.23 KB	145.54 KB	145.52 KB	UMD_DEV
react-art.production.min.js	-0.1%	-0.1%	104 KB	103.87 KB	31.63 KB	31.61 KB	UMD_PROD
react-art.development.js	-0.0%	-0.0%	600.1 KB	599.86 KB	128.13 KB	128.11 KB	NODE_DEV
react-art.production.min.js	-0.2%	-0.2%	69.01 KB	68.89 KB	20.92 KB	20.89 KB	NODE_PROD
ReactART-dev.js	-0.0%	-0.0%	614.81 KB	614.57 KB	127.96 KB	127.94 KB	FB_WWW_DEV
ReactART-prod.js	-0.2%	-0.1%	231.72 KB	231.33 KB	39.13 KB	39.07 KB	FB_WWW_PROD

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