Added DELETE method to server.

internal/http/server.go

@@ -36,6 +36,10 @@ func (s *HttpServer) POST(path string, handler http.HandlerFunc) {
 	s.router.Handler(http.MethodPost, path, handler)
 }
 
+func (s *HttpServer) DELETE(path string, handler http.HandlerFunc) {
+	s.router.Handler(http.MethodDelete, path, handler)
+}
+
 func (s *HttpServer) ServeStatic(path string, fsys http.FileSystem) {
 	s.router.ServeFiles(path, fsys)
 }