remove unnecessary string interpolation

Co-authored-by: Ruben Bridgewater <ruben@bridgewater.de>

Author: dario-piotrowicz

lib/internal/repl/completion.js

@@ -731,15 +731,15 @@ function includesProxiesOrGetters(expr, exprStr, evalFn, ctx, callback) {
 
     if (astProp.type === 'Literal') {
       // We have something like `obj['foo'].x` where `x` is the literal
-      return propHasGetterOrIsProxy(obj, `${astProp.value}`, cb);
+      return propHasGetterOrIsProxy(obj, astProp.value, cb);
     }
 
     if (
       astProp.type === 'Identifier' &&
       exprStr.at(astProp.start - 1) === '.'
     ) {
       // We have something like `obj.foo.x` where `foo` is the identifier
-      return propHasGetterOrIsProxy(obj, `${astProp.name}`, cb);
+      return propHasGetterOrIsProxy(obj, astProp.name, cb);
     }
 
     return evalFn(