Remove totally unimplemented things #6768
Description
Below are interfaces that have never been implemented per the data, or just no data.
Marked as deprecated/obsolete:
- BluetoothAdvertisingData
- DOMConfiguration
- DOMImplementationList
- HTMLIsIndexElement
- Notation
- PushRegistrationManager
- SVGColorProfileElement
- SVGSolidcolorElement
- SVGAltGlyphDefElement
- SVGAltGlyphItemElement
- SVGFontElement
- SVGFontFaceElement
- SVGFontFaceFormatElement
- SVGFontFaceNameElement
- SVGFontFaceSrcElement
- SVGFontFaceUriElement
- SVGGlyphElement
- SVGGlyphRefElement
- SVGHKernElement
- SVGMissingGlyphElement
- SVGRenderingIntent
- SVGTRefElement
- SVGVKernElement
Not an interface nor a mixin:
Experimental (probably okay to exist):