Add feature flag for Kubernetes discovery

src/util/Cargo.toml

@@ -40,7 +40,4 @@ netapp = "0.4.1"
 http = "0.2"
 hyper = "0.14"
 
-kube = { version = "0.62", features = ["runtime", "derive"] }
-k8s-openapi = { version = "0.13", features = ["v1_22"] }
-
 opentelemetry = "0.17"

src/util/error.rs

@@ -23,9 +23,6 @@ pub enum Error {
 	#[error(display = "Invalid HTTP header value: {}", _0)]
 	HttpHeader(#[error(source)] http::header::ToStrError),
 
-	#[error(display = "kubernetes error: {}", _0)]
-	Kubernetes(#[error(source)] kube::Error),
-
 	#[error(display = "Netapp error: {}", _0)]
 	Netapp(#[error(source)] netapp::error::Error),