Bug How to completely uninstall Altspace plugin?

As I'm attempting to port my scene to VRChat, that plugin wont load due to Altspace plugin already in my project.

Error shown in the consult when attempting to install the VRChat SDK below:
Multiple precompiled assemblies with the same name System.Buffers.dll included or the current platform. Only one assembly with the same name is allowed per platform. (C:/Users/bhoff/Butron for PC/Library/PackageCache/com.microsoft.altspacevr_uploader@ef6d52354622-1652123033519/Plugins/System.Buffers.dll)

I've deleted what I thought was all references to Altspace, including the file mentioned above, but upon close and reopen of my project, Unity determines that it's missing and rebuilds the altspacevr_uploader file... and notifies me it's being done as shown below:

The package cache was invalidated and rebuilt because the following immutable asset(s) were unexpectedly altered:
Packages/com.microsoft.altspacevr_uploader/Editor/Uploader/UploaderTool_Editor.dll.config
Packages/com.microsoft.altspacevr_uploader/Editor/Uploader/Microsoft.IdentityModel.JsonWebTokens.xml
Packages/com.microsoft.altspacevr_uploader/Editor/com.microsoft.altspacevr_assets.asmdef
Packages/com.microsoft.altspacevr_uploader/Plugins/System.Security.Cryptography.Cng.dll
Packages/com.microsoft.altspacevr_uploader/Plugins/System.Memory.xml
Packages/com.microsoft.altspacevr_uploader/Editor/Uploader/Microsoft.IdentityModel.Tokens.dll
Packages/com.microsoft.altspacevr_uploader/Editor/Uploader/Microsoft.Identity.Client.xml
Packages/com.microsoft.altspacevr_uploader/Editor/Uploader/System.Net.Sockets.dll
Packages/com.microsoft.altspacevr_uploader/Plugins/System.Reflection.Emit.Lightweight.dll
Packages/com.microsoft.altspacevr_uploader/Editor/Uploader/Microsoft.IdentityModel.JsonWebTokens.dll
Packages/com.microsoft.altspacevr_uploader/Plugins/System.Runtime.CompilerServices.Unsafe.xml
Packages/com.microsoft.altspacevr_uploader/Assets/URP
Packages/com.microsoft.altspacevr_uploader
Packages/com.microsoft.altspacevr_uploader/Editor/Uploader/System.Threading.Overlapped.dll
Packages/com.microsoft.altspacevr_uploader/Editor/CheckForOldShaders.ps1
Packages/com.microsoft.altspacevr_uploader/Editor
Packages/com.microsoft.altspacevr_uploader/Assets/Shaders/MREUnlit.shader
Packages/com.microsoft.altspacevr_uploader/Assets/Resources/logo.png
Packages/com.microsoft.altspacevr_uploader/Editor/Uploader/System.IdentityModel.Tokens.Jwt.xml
Packages/com.microsoft.altspacevr_uploader/Assets/URP/Quest_UniversalRenderPipelineAsset.asset
Packages/com.microsoft.altspacevr_uploader/Assets/URP/UniversalRenderPipelineAsset.asset
Packages/com.microsoft.altspacevr_uploader/Editor/Uploader/System.Diagnostics.Tracing.dll
Packages/com.microsoft.altspacevr_uploader/Editor/Uploader/System.Security.SecureString.dll
Packages/com.microsoft.altspacevr_uploader/Plugins/msvcp140_app.dll
Packages/com.microsoft.altspacevr_uploader/Assets/Shaders
Packages/com.microsoft.altspacevr_uploader/Plugins/System.Security.Cryptography.ProtectedData.xml
Packages/com.microsoft.altspacevr_uploader/CHANGELOG.md
Packages/com.microsoft.altspacevr_uploader/Plugins/System.Runtime.CompilerServices.Unsafe.dll
Packages/com.microsoft.altspacevr_uploader/Editor/Uploader/System.IdentityModel.Tokens.Jwt.dll
Packages/com.microsoft.altspacevr_uploader/Plugins/System.Security.Cryptography.ProtectedData.dll
Packages/com.microsoft.altspacevr_uploader/Editor/Uploader
Packages/com.microsoft.altspacevr_uploader/Editor/MREDiffuseVertexShaderGUI.cs
Packages/com.microsoft.altspacevr_uploader/Editor/Uploader/Microsoft.IdentityModel.Tokens.xml
Packages/com.microsoft.altspacevr_uploader/Plugins/System.Buffers.dll
Packages/com.microsoft.altspacevr_uploader/Assets/URP/UniversalRenderPipelineAsset_Renderer.asset
Packages/com.microsoft.altspacevr_uploader/Editor/Uploader/WinAzureAdAuthentication.dll
Packages/com.microsoft.altspacevr_uploader/Editor/Uploader/Microsoft.IdentityModel.Logging.xml
Packages/com.microsoft.altspacevr_uploader/Plugins/System.Buffers.xml
Packages/com.microsoft.altspacevr_uploader/Assets/URP/Quest_UniversalRenderPipelineAsset_Renderer.asset
Packages/com.microsoft.altspacevr_uploader/Editor/Uploader/System.Diagnostics.StackTrace.dll
Packages/com.microsoft.altspacevr_uploader/Editor/Uploader/System.Data.Common.dll
Packages/com.microsoft.altspacevr_uploader/Plugins/vcruntime140_app.dll
Packages/com.microsoft.altspacevr_uploader/Plugins/System.Reflection.Emit.Lightweight.xml
Packages/com.microsoft.altspacevr_uploader/Editor/Uploader/System.Globalization.Extensions.dll
Packages/com.microsoft.altspacevr_uploader/Plugins/vcruntime140_1_app.dll
Packages/com.microsoft.altspacevr_uploader/Assets/Shaders/ToonShaded.shader
Packages/com.microsoft.altspacevr_uploader/Editor/Uploader/UploaderTool_Editor.dll
Packages/com.microsoft.altspacevr_uploader/Assets/Resources/ShaderSubstitutionList.asset
Packages/com.microsoft.altspacevr_uploader/Assets/Shaders/MREDiffuseVertex.shader
Packages/com.microsoft.altspacevr_uploader/Assets
Packages/com.microsoft.altspacevr_uploader/Assets/Resources
Packages/com.microsoft.altspacevr_uploader/Editor/Uploader/System.Xml.XPath.XDocument.dll
Packages/com.microsoft.altspacevr_uploader/LICENSE.md
Packages/com.microsoft.altspacevr_uploader/package.json
Packages/com.microsoft.altspacevr_uploader/Editor/Uploader/Microsoft.IdentityModel.Logging.dll
Packages/com.microsoft.altspacevr_uploader/Editor/Uploader/Microsoft.Identity.Client.dll
Packages/com.microsoft.altspacevr_uploader/Plugins
Packages/com.microsoft.altspacevr_uploader/Plugins/System.Memory.dll
Packages/com.microsoft.altspacevr_uploader/Editor/Uploader/System.Runtime.Serialization.Primitives.dll


The reason I've marked this thread as BUG, is because unless I can uninstall Altspace, I can't install VRChat SDK.