fixed variable error

random-number-range/app.js

@@ -14,7 +14,6 @@ if ( Number.isInteger(promptInt) && Number.isInteger(promptIntHigh) ) {
 
   // Use Math.random() and the user's number to generate a random number
 
-  const resultNumber = Math.floor(Math.random() * promptIntHigh) + promptInt;
   const resultNumber = Math.floor( Math.random() * (promptIntHigh - promptInt + 1) ) + promptInt;
 
   // Create a message displaying the random number