micro-http: fix: handle new DELETE request

micro-http added brand new DELETE request and this requires us to
adjust our code a bit

Signed-off-by: Egor Lazarchuk <yegorlz@amazon.co.uk>

Author: ShadowCurse

src/firecracker/src/api_server/parsed_request.rs

@@ -284,6 +284,10 @@ pub(crate) fn method_to_error(method: Method) -> Result<ParsedRequest, RequestEr
             StatusCode::BadRequest,
             "Empty PATCH request.".to_string(),
         )),
+        Method::Delete => Err(RequestError::Generic(
+            StatusCode::BadRequest,
+            "Empty Delete request.".to_string(),
+        )),
     }
 }
 

src/vmm/src/dumbo/tcp/endpoint.rs

@@ -599,7 +599,7 @@ mod tests {
         assert_eq!(actual_response, expected_response);
 
         // Test invalid HTTP methods.
-        let invalid_methods = ["POST", "HEAD", "DELETE", "CONNECT", "OPTIONS", "TRACE"];
+        let invalid_methods = ["POST", "HEAD", "CONNECT", "OPTIONS", "TRACE"];
         for method in invalid_methods.iter() {
             let request_bytes = format!("{} http://169.254.169.255/ HTTP/1.0\r\n\r\n", method);
             let mut expected_response = Response::new(Version::Http11, StatusCode::NotImplemented);