Disable unused vars warning

Because I keep demo programs, and the true input in the files, and
switch between them, this is getting a little annoying. Plus, VS Code
already shows me when a variable is unused.

.eslintrc.json

@@ -10,7 +10,7 @@
         "no-underscore-dangle": "off",
         "linebreak-style": ["error", "unix"],
         "no-console": "off",
-        "no-unused-vars": "warn",
+        "no-unused-vars": "off",
         "no-param-reassign": "off"
     }
 }