fix and update config

conf/nginx/domain/eiblog.conf

@@ -60,7 +60,7 @@ server {
     }
 
     # webmaster 站点验证相关
-    location ~* (robots\.txt|favicon\.ico|crossdomain\.xml|google4c90d18e696bdcf8\.html|BingSiteAuth\.xml)$ {
+    location ~* (google4c90d18e696bdcf8\.html|BingSiteAuth\.xml)$ {
         root                     /data/eiblog/static;
         expires                  1d;
     }