Drop unnecessary operator!=() in WebKit

[cdumez]

e403bc5

Drop unnecessary operator!=() in WebKit
https://bugs.webkit.org/show_bug.cgi?id=261253

Reviewed by Michael Catanzaro.

Drop unnecessary operator!=() in WebKit and let the compiler generate them now
that we support C++20.

* Source/JavaScriptCore/wasm/generateWasmOpsHeader.py:
* Source/WebCore/platform/audio/gstreamer/GStreamerAudioStreamDescription.h:
* Source/WebCore/platform/graphics/freetype/FontSetCache.h:
(WebCore::FontSetCacheKey::operator!= const): Deleted.
* Source/WebCore/platform/graphics/gstreamer/GStreamerCommon.h:
(GstIteratorAdaptor::iterator::operator== const):
(GstIteratorAdaptor::iterator::operator!= const): Deleted.
* Source/WebCore/platform/graphics/gstreamer/GStreamerRegistryScanner.h:
(WebCore::GStreamerRegistryScanner::RegistryLookupResult::operator==):
(WebCore::GStreamerRegistryScanner::RegistryLookupResult::operator!=): Deleted.
* Source/WebCore/platform/graphics/win/ComplexTextControllerUniscribe.cpp:
(WebCore::BidiRange::Iterator::operator==):
(WebCore::BidiRange::Iterator::operator!=): Deleted.
* Source/WebCore/platform/network/curl/CertificateInfo.h:
(WebCore::CertificateInfo::operator== const): Deleted.
(WebCore::CertificateInfo::operator!= const): Deleted.
* Source/WebCore/platform/network/soup/CertificateInfo.h:
(WebCore::CertificateInfo::operator== const):
(WebCore::CertificateInfo::operator!= const): Deleted.

Canonical link: https://commits.webkit.org/267735@main

775e2e8

Misc	iOS, tvOS & watchOS	macOS	Linux	Windows
✅ 🧪 style	✅ 🛠 ios	✅ 🛠 mac	✅ 🛠 wpe	✅ 🛠 wincairo
✅ 🧪 bindings	✅ 🛠 ios-sim	✅ 🛠 mac-AS-debug	✅ 🧪 wpe-wk2
✅ 🧪 webkitperl	✅ 🧪 ios-wk2	✅ 🧪 api-mac	✅ 🛠 gtk
	✅ 🧪 ios-wk2-wpt	✅ 🧪 mac-wk1	✅ 🧪 gtk-wk2
✅ 🛠 🧪 jsc	✅ 🧪 api-ios	✅ 🧪 mac-wk2	✅ 🧪 api-gtk
✅ 🛠 🧪 jsc-arm64	✅ 🛠 tv	✅ 🧪 mac-AS-debug-wk2	✅ 🛠 jsc-armv7
	✅ 🛠 tv-sim		✅ 🧪 jsc-armv7-tests
✅ 🛠 🧪 merge	✅ 🛠 watch		✅ 🛠 jsc-mips
	✅ 🛠 watch-sim		✅ 🧪 jsc-mips-tests

[webkit-early-warning-system]

EWS run on previous version of this PR (hash f4279cb)

Misc	iOS, tvOS & watchOS	macOS	Linux	Windows
✅ 🧪 style	✅ 🛠 ios	✅ 🛠 mac	✅ 🛠 wpe	❌ 🛠 wincairo
✅ 🧪 bindings	✅ 🛠 ios-sim	✅ 🛠 mac-AS-debug	⏳ 🧪 wpe-wk2
✅ 🧪 webkitperl	✅ 🧪 ios-wk2	🧪 api-mac	❌ 🛠 gtk
	✅ 🧪 ios-wk2-wpt	✅ 🧪 mac-wk1	❌ 🧪 gtk-wk2
⏳ 🛠 🧪 jsc	✅ 🧪 api-ios	✅ 🧪 mac-wk2	❌ 🧪 api-gtk
✅ 🛠 🧪 jsc-arm64	✅ 🛠 tv	⏳ 🧪 mac-AS-debug-wk2	✅ 🛠 jsc-armv7
	✅ 🛠 tv-sim		✅ 🧪 jsc-armv7-tests
	✅ 🛠 watch		✅ 🛠 jsc-mips
	✅ 🛠 watch-sim		✅ 🧪 jsc-mips-tests

[webkit-early-warning-system]

EWS run on current version of this PR (hash 775e2e8)

Misc	iOS, tvOS & watchOS	macOS	Linux	Windows
✅ 🧪 style	✅ 🛠 ios	✅ 🛠 mac	✅ 🛠 wpe	✅ 🛠 wincairo
✅ 🧪 bindings	✅ 🛠 ios-sim	✅ 🛠 mac-AS-debug	✅ 🧪 wpe-wk2
✅ 🧪 webkitperl	✅ 🧪 ios-wk2	✅ 🧪 api-mac	✅ 🛠 gtk
	✅ 🧪 ios-wk2-wpt	✅ 🧪 mac-wk1	✅ 🧪 gtk-wk2
✅ 🛠 🧪 jsc	✅ 🧪 api-ios	✅ 🧪 mac-wk2	✅ 🧪 api-gtk
✅ 🛠 🧪 jsc-arm64	✅ 🛠 tv	✅ 🧪 mac-AS-debug-wk2	✅ 🛠 jsc-armv7
	✅ 🛠 tv-sim		✅ 🧪 jsc-armv7-tests
✅ 🛠 🧪 merge	✅ 🛠 watch		✅ 🛠 jsc-mips
	✅ 🛠 watch-sim		✅ 🧪 jsc-mips-tests

[webkit-commit-queue]

Committed 267735@main (e403bc5): https://commits.webkit.org/267735@main

Reviewed commits have been landed. Closing PR #17528 and removing active labels.