Dont mess with pglogical from PostgresAdmin

We will handle this in the main app rake task before we even get
to this class to do the restore.

This will be cleaner as we can use all the tooling we have built
up around the extension there rather than shelling out to psql
from here

https://bugzilla.redhat.com/show_bug.cgi?id=1540686

lib/gems/pending/util/postgres_admin.rb

@@ -124,37 +124,6 @@ def self.restore_pg_basebackup(file)
     file
   end
 
-  def self.unload_pglogical_extension(opts)
-    runcmd("psql", opts, :command => <<-SQL)
-      SELECT
-        drop_subscription
-      FROM
-        pglogical.subscription subs,
-        LATERAL pglogical.drop_subscription(subs.sub_name)
-    SQL
-
-    runcmd("psql", opts, :command => <<-SQL)
-      DROP EXTENSION pglogical CASCADE
-    SQL
-
-    # Wait for pglogical manager connection to quiesce. Bail after 5 minutes
-    60.times do
-      output = runcmd("psql", opts, :command => <<-SQL)
-        SELECT application_name
-        FROM pg_stat_activity
-        WHERE application_name LIKE 'pglogical manager%'
-      SQL
-      match = /^\((?<count>\d+) row/.match(output)
-      count = match ? match[:count].to_i : 0
-      break if count.zero?
-
-      $log.info("MIQ(#{name}.#{__method__}) Waiting on #{count} pglogical connections to close...")
-      sleep 5
-    end
-  rescue AwesomeSpawn::CommandResultError
-    $log.info("MIQ(#{name}.#{__method__}) Ignoring failure to remove pglogical before restore ...")
-  end
-
   def self.backup_pg_compress(opts)
     opts = opts.dup
 
@@ -180,7 +149,6 @@ def self.recreate_db(opts)
   end
 
   def self.restore_pg_dump(opts)
-    unload_pglogical_extension(opts)
     recreate_db(opts)
 
     runcmd("pg_restore", opts, :verbose => nil, :exit_on_error => nil, nil => opts[:local_file])