lib: remove unnecessary string interpolation

PR-URL: #20890 Reviewed-By: Anatoli Papirovski <[email protected]> Reviewed-By: Colin Ihrig <[email protected]> Reviewed-By: Michaël Zasso <[email protected]> Reviewed-By: Jackson Tian <[email protected]> Reviewed-By: Trivikram Kamat <[email protected]> Reviewed-By: James M Snell <[email protected]> Reviewed-By: Luigi Pinca <[email protected]> Reviewed-By: Tobias Nießen <[email protected]> Reviewed-By: Benjamin Gruenbaum <[email protected]>

Author: danbev

lib/internal/process/warning.js

@@ -83,7 +83,7 @@ function setupProcessWarnings(){
 if(isDeprecation&&process.noDeprecation)return;
 consttrace=process.traceProcessWarnings||
 (isDeprecation&&process.traceDeprecation);
-varmsg=`${prefix}`;
+varmsg=prefix;
 if(warning.code)
 msg+=`[${warning.code}] `;
 if(trace&&warning.stack){