Remove redis-namespace gem (#34742)

app/lib/admin/metrics/dimension/software_versions_dimension.rb

@@ -119,10 +119,6 @@ class Admin::Metrics::Dimension::SoftwareVersionsDimension < Admin::Metrics::Dim
   end
 
   def redis_info
-    @redis_info ||= if redis.is_a?(Redis::Namespace)
-                      redis.redis.info
-                    else
-                      redis.info
-                    end
+    @redis_info ||= redis.info
   end
 end

app/lib/admin/metrics/dimension/space_usage_dimension.rb

@@ -58,11 +58,7 @@ class Admin::Metrics::Dimension::SpaceUsageDimension < Admin::Metrics::Dimension
   end
 
   def redis_info
-    @redis_info ||= if redis.is_a?(Redis::Namespace)
-                      redis.redis.info
-                    else
-                      redis.info
-                    end
+    @redis_info ||= redis.info
   end
 
   def search_size

app/lib/redis_connection.rb

@@ -29,12 +29,7 @@ class RedisConnection
   end
 
   def connection
-    namespace = config[:namespace]
-    if namespace.present?
-      Redis::Namespace.new(namespace, redis: raw_connection)
-    else
-      raw_connection
-    end
+    raw_connection
   end
 
   private