Removed redundant map.put() call.
@@ -105,7 +105,6 @@ public abstract class ProtoLangToolchainProvider {
m.put("out_replacement_format_flag", outReplacementFormatFlag);
m.put("progress_message", progressMessage);
m.put("mnemonic", mnemonic);
- m.put("plugin", pluginExecutable == null ? Starlark.NONE : pluginExecutable);
m.put("runtime", runtime == null ? Starlark.NONE : runtime);
StarlarkProvider.Builder builder = StarlarkProvider.builder(Location.BUILTIN);
