Revert "Implement OUTPUT opcode"

This reverts commit 95cb98f08466f86cd7a723017038a55dfd21dad5.

IntComp/Computer.js

@@ -1,5 +1,4 @@
 const Stack = require("./Stack");
-const ComputerParameterMode = require('./ComputerParameterMode');
 
 /**
  * An Intcode Computer for the Advent of Code 2019 challenge
@@ -15,8 +14,11 @@ module.exports = class Computer {
             OUTPUT: 4,
             HALT: 99,
         };
-
-        this.paramMode = ComputerParameterMode.POSITION_MODE;
+        this.PARAMETER_MODES = {
+            POSITION_MODE: 0,
+            IMMEDIATE_MODE: 1,
+        }
+        this.paramMode = this.PARAMETER_MODES.POSITION_MODE;
     }
 
     /**