Revert "Add Origin header checks"

This reverts commit 2be240767c.

src/invidious.cr

@@ -128,15 +128,6 @@ if CONFIG.geo_bypass
 end
 
 before_all do |env|
-  if CONFIG.domains && env.request.headers["Origin"]?
-    origin = env.request.headers["Origin"]
-    domains = CONFIG.domains.not_nil!
-
-    if !domains.includes? origin
-      halt env, status_code: 403
-    end
-  end
-
   env.response.headers["X-XSS-Protection"] = "1; mode=block;"
   env.response.headers["X-Content-Type-Options"] = "nosniff"
 

src/invidious/helpers/helpers.cr

@@ -16,7 +16,6 @@ class Config
     hmac_key:     String?,
     full_refresh: Bool,
     geo_bypass:   Bool,
-    domains:      Array(String)?,
   })
 end