remove extra argument

src/libcmd/command.cc

@@ -138,7 +138,7 @@ ref<EvalState> EvalCommand::getEvalState()
 
                 if (expr.staticEnv) {
                     auto vm = mapStaticEnvBindings(evalState->symbols, *expr.staticEnv.get(), env);
-                    runRepl(evalState, expr, *vm);
+                    runRepl(evalState, *vm);
                 }
             };
     }

src/libcmd/command.hh

@@ -275,7 +275,6 @@ void printClosureDiff(
 
 void runRepl(
     ref<EvalState> evalState,
-    const Expr & expr,
     const ValMap & extraEnv);
 
 }

src/libcmd/repl.cc

@@ -1012,7 +1012,6 @@ std::ostream & NixRepl::printValue(std::ostream & str, Value & v, unsigned int m
 
 void runRepl(
     ref<EvalState> evalState,
-    const Expr &expr,
     const ValMap & extraEnv)
 {
     auto repl = std::make_unique<NixRepl>(evalState);