remove deprecated nginx config options

This commit removes the Nginx configuration options related to OCSP stapling and OCSP Must-Staple.
Let's Encrypt is discontinuing OCSP support in favor of CRLs (Certificate Revocation Lists) to improve privacy and simplify infrastructure.

roles/nginx/templates/ssl.conf.j2

@@ -6,12 +6,8 @@
     ssl_prefer_server_ciphers off;
     ssl_early_data on;
     ssl_dhparam {{ nginx_ssl_dhparam }};
-# OCSP Stapling fetch OCSP records from URL in ssl_certificate and cache them
-    ssl_stapling on;
-    ssl_stapling_verify on;
-    resolver 1.1.1.1 1.0.0.1 [2606:4700:4700::1111] [2606:4700:4700::1001];
 # SSL session handling
     ssl_session_cache shared:SSL:10m;
     ssl_session_timeout 1d;
     ssl_session_tickets off;
-    ssl_buffer_size 4k;
+    ssl_buffer_size 4k;