Remove unused setHeaders function from fastify static config

The setHeaders function was defined but not used effectively in the static file configuration. This cleanup simplifies the code and prevents potential redundancy. The caching behavior remains unaltered as it is handled elsewhere.

Signed-off-by: Akama Aka <akama.aka@akami-solutions.cc>

server.js

@@ -15,8 +15,6 @@ const server = require('fastify')({logger: process})
     }).register(require('@fastify/static'), {         // For all Static files like Styling, JavaScript Cde
         prefix: `/${process.env.PATH_IDENTIFIER}/assets/`,
         preCompressed: true,
-        setHeaders: () => {
-            cacheControl: `public, max-age=${process.env.ASSETS_CACHE_TTL}`
         },
         root: join(__dirname + '/public/assets/')
     })