Drop support for mulitpart bundling package in WASM deployment layout article 8.0

[guardrex]

Dropping support per dotnet/aspnetcore#36978 (comment).

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Document Details

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• ID: 303a2fe3-ffe3-5f0e-5a0b-6cb9377147a2
• Version Independent ID: 79eec8ea-34e3-ea40-2b00-bf98ec7b3809
• Content: Deployment layout for ASP.NET Core hosted Blazor WebAssembly apps
• Content Source: aspnetcore/blazor/host-and-deploy/webassembly-deployment-layout.md
• Product: aspnet-core
• Technology: aspnetcore-blazor
• GitHub Login: @guardrex
• Microsoft Alias: riande