feat: remove sponsorship page

Signed-off-by: David Dal Busco <[email protected]>

Author: peterpeterparker

docusaurus.config.ts

@@ -194,7 +194,6 @@ const config: Config = {
               { to: "/showcase", label: "Showcase" },
               { to: "/blog", label: "Blog" },
               { to: "/newsletter", label: "Newsletter" },
-              { to: "/sponsorship", label: "Sponsorship" },
               { to: "/contact", label: "Contact" }
             ]
           },
@@ -315,10 +314,6 @@ const config: Config = {
                 label: "Newsletter",
                 to: "/newsletter"
               },
-              {
-                label: "Sponsorship",
-                to: "/sponsorship"
-              },
               {
                 label: "Changelog",
                 to: "/changelog"