Duplicate root replaced (#1664)

Testing this on dev I realized it is adding the /cwms-data root again. 

Forgot we are using a different router on CDA.

Author: krowvin

cda-gui/src/links/header-links.js

@@ -17,7 +17,7 @@ export default [
       {
         id: "swagger-schema",
         text: "Swagger Docs Schema",
-        href: "/cwms-data/swagger-docs",
+        href: "/swagger-docs",
       },
     ],
   },