Remove references to <typeInfo> and child elements

docs/extensions/info-xml.md

@@ -174,7 +174,6 @@ Elements acceptable within `<extension>`
 | [`<name>`](#name)| 1 |  |
 | [`<releaseDate>`](#releaseDate) | 1 |  |
 | [`<requires>`](#requires) | 0 or 1 |  |
-| [`<typeInfo>`](#typeInfo) | 0 or 1 |  |
 | [`<urls>`](#urls) | 1 |  |
 | [`<version>`](#version) | 1 |  |
 
@@ -264,19 +263,6 @@ Elements acceptable within `<requires>`
 | -- | -- |
 | [`<ext>`](#ext) | 1+ |
 
-### `<signatureLabel>` {:#signatureLabel}
-
-* Containing element: [`<typeInfo>`](#typeInfo)
-* Description: Label to use for the signature field
-* Contains: text
-
-### `<subjectLabel>` {:#subjectLabel}
-
-* Containing element: [`<typeInfo>`](#typeInfo)
-* Description: Label to use for the subject field
-* Contains: text
-
-
 ### `<url>` {:#url}
 
 * Containing element: [`<urls>`](#urls)