Clean out unused file, update license

vendor/THIRD_PARTY_NOTICES.md

@@ -1,18 +1,6 @@
 # Vendor Binaries
 This folder contains pre-compiled binaries from a variety of sources. These should be updated periodically.
 
-### singlefilehost.exe
-- This is the native exe that has the .net native runtime linked in. 
-- It is also used for re-packing the `Update.exe` binary.
-- Can be found in the dotnet SDK at "C:\Program Files\dotnet\packs\Microsoft.NETCore.App.Host.win-x86\6.0.0\runtimes\win-x86\native\singlefilehost.exe".
-- Can also be downloaded from NuGet, from here https://www.nuget.org/packages/Microsoft.NETCore.App.Host.win-x86/6.0.0
-- MIT License: https://github.com/dotnet/runtime/blob/main/LICENSE.TXT
-
-### nuget.exe
-- Used with the `pack` command to bundle an application directory into a nuget package, which is then used to create Squirrel releases
-- Can be found at https://www.nuget.org/downloads
-- Apache 2.0 License: https://github.com/NuGet/NuGet.Client/blob/dev/LICENSE.txt
-
 ### rcedit.exe
 - Updates PE resources, like VersionInfo or icons. It is used when generating `Setup.exe` and `Update.exe` to apply the user preferences.
 - Can be found at https://github.com/electron/rcedit/releases
@@ -26,9 +14,4 @@ This folder contains pre-compiled binaries from a variety of sources. These shou
 ### 7za.exe / 7zz
 - Incldued because it is much faster at zipping / unzipping than the available managed algorithms.
 - Can be found at https://www.7-zip.org/
-- License is LGPL & BSD 3: https://www.7-zip.org/license.txt
-
-### wix
-- Can be used to build persistent msi packages for the purposes of AD deployment
-- Can be found at https://github.com/wixtoolset/wix3/releases
-- MS-RL License: https://github.com/wixtoolset/wix3/blob/develop/LICENSE.TXT
+- License is LGPL & BSD 3: https://www.7-zip.org/license.txt