dont try to make a virtfs today. instead, delete virtfs example.

crates/wasi-common/virtfs/Cargo.toml

@@ -1,18 +0,0 @@
-[package]
-name = "wasi-virtfs"
-version = "0.22.0"
-authors = ["The Wasmtime Project Developers"]
-description = "WASI implementation in Rust"
-license = "Apache-2.0 WITH LLVM-exception"
-categories = ["wasm"]
-keywords = ["webassembly", "wasm"]
-repository = "https://github.com/bytecodealliance/wasmtime"
-readme = "README.md"
-edition = "2018"
-include = ["src/**/*", "LICENSE" ]
-publish = false
-
-[dependencies]
-wasi-common = { path = "../", version = "0.22.0" }
-anyhow = "1.0"
-cap-std = "0.12"