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Rollup merge of #106502 - notriddle:notriddle/user-select, r=GuillaumeGomez

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rustdoc: remove legacy user-select CSS

According to [caniuse], the only supported browser that requires the vendor prefix, as defined in [RFC 1985], is Safari.

* The last version of Chrome that required a vendor prefix was version 53. The current version is 108.
* Firefox 68 is the last version that required a vendor prefix. The [current Firefox ESR] is version 102.
* The current version of Safari for Mac and iOS still requires a prefix.
* The last version of Edge that required a vendor frefix was 18. The current version of Edge is 108.
* UCAndroid support is unknown, but if it still requires a vendor prefix, it's more likely to be `-webkit-` than `-moz-` or `-ms-`, since they would want to emulate iOS for compatibility.

[caniuse]: https://caniuse.com/?search=user-select
[RFC 1985]: https://rust-lang.github.io/rfcs/1985-tiered-browser-support.html
[current Firefox ESR]: https://wiki.mozilla.org/Releases
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Dylan DPC 2023-01-06 11:38:58 +05:30 committed by GitHub
commit dd97619b1f
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src/librustdoc/html/static/css/rustdoc.css
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@ -538,8 +538,6 @@ ul.block, .block li {
overflow: initial;
text-align: right;
-webkit-user-select: none;
-moz-user-select: none;
-ms-user-select: none;
user-select: none;
padding: 14px 8px;
color: var(--src-line-numbers-span-color);