[react-dom] Provide a way to silence devtools recommendation

[rtpg]

If you hit this console message and search for how to turn it off, many people recommend hacky ways to do so that also end up breaking the extension if you actually want to use it later on.

This provides a way to turn off just the message, without trying to trick injectIntoDevTools into thinking something's happened.

This SO answer is a good example of a "wrong answer" to disabling this logging warning:

window.__REACT_DEVTOOLS_GLOBAL_HOOK__ = { isDisabled: true };

This disables the integration entirely instead of simply removing the warning if it's not installed. A project might want to simply not have the log show up for its own reasons.

I'm sending this up, if it's OK in principle the best thing would be to include 2 lines in some docs so that it can be the first result of a web search for people looking to disable it.

As to why I want to disable this: I run some tests without minified react. In the CI environment I do not need the devtools installed. I would like to avoid having to write some special-cased code to hack-away a removal of this message.

related issues: #12041

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[react-sizebot]

Comparing: c4083616a232028588a2cbaa9ba8992481d1deb7...6797b3666f30b09e3964eac152e36bb377ef8c83

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	=	6.66 kB	6.66 kB	+0.11%	1.82 kB	1.82 kB
oss-experimental/react-dom/cjs/react-dom.production.js	=	6.67 kB	6.67 kB	+0.11%	1.83 kB	1.83 kB
facebook-www/ReactDOM-prod.classic.js	=	591.11 kB	591.11 kB	=	103.94 kB	103.94 kB
facebook-www/ReactDOM-prod.modern.js	=	567.33 kB	567.33 kB	=	100.34 kB	100.34 kB
test_utils/ReactAllWarnings.js	Deleted	64.26 kB	0.00 kB	Deleted	16.02 kB	0.00 kB

Significant size changes

Includes any change greater than 0.2%:

Expand to show

Name	+/-	Base	Current	+/- gzip	Base gzip	Current gzip
test_utils/ReactAllWarnings.js	Deleted	64.26 kB	0.00 kB	Deleted	16.02 kB	0.00 kB

Generated by :no_entry_sign: dangerJS against 6797b3666f30b09e3964eac152e36bb377ef8c83

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