chore(config): remove flatOptions references

Iterative change moving us towards a more unified config.
No longer pulling config from flatOptions where we don't have to.

PR-URL: #2892
Credit: @wraithgar
Close: #2892
Reviewed-by: @ruyadorno

Author: wraithgar

test/lib/outdated.js

@@ -177,6 +177,7 @@ t.test('should display outdated deps', t => {
     outdated(null, {
       config: { global: true },
     }).exec([], () => {
+      console.log(logs)
       t.matchSnapshot(logs)
       t.end()
     })