Fix tests

Author: bkchr

polkadot/tests/benchmark_block.rs

@@ -32,7 +32,7 @@ use tempfile::tempdir;
 
 pub mod common;
 
-static RUNTIMES: [&str; 4] = ["polkadot", "kusama", "westend", "rococo"];
+static RUNTIMES: [&str; 4] = ["westend", "rococo"];
 
 /// `benchmark block` works for all dev runtimes using the wasm executor.
 #[tokio::test]