Revert "feat: Add automatic migration from amazon-q to kiro-cli (#3359)"

This reverts commit b86899c.

Author: kkashilk

Cargo.lock

@@ -87,7 +87,6 @@ regex = "1.7.0"
 reqwest = { version = "0.12.14", default-features = false, features = ["http2", "charset", "rustls-tls", "rustls-tls-native-roots", "gzip", "json", "socks", "cookies", "stream"] }
 ring = "0.17.14"
 rusqlite = { version = "0.32.1", features = ["bundled", "serde_json"] }
-rustix = { version = "1.1.2", features = ["fs"] }
 rustls = "0.23.23"
 rustls-native-certs = "0.8.1"
 rustls-pemfile = "2.1.0"

Cargo.toml

@@ -80,7 +80,6 @@ regex.workspace = true
 reqwest.workspace = true
 ring.workspace = true
 rusqlite.workspace = true
-rustix.workspace = true
 rustls.workspace = true
 rustls-native-certs.workspace = true
 rustls-pemfile.workspace = true