remove spurious CREATE INDEX CONCURRENTLY wait

When Who What
2020-11-30 19:55:04 Álvaro Herrera (alvherre) Closed in commitfest 2020-11 with status: Committed
2020-11-30 19:55:04 Álvaro Herrera (alvherre) Changed committer to alvherre
2020-09-30 09:11:21 Michael Paquier (michael-kun) Closed in commitfest 2020-09 with status: Moved to next CF
2020-08-31 19:46:58 Álvaro Herrera (alvherre) Changed authors to Álvaro Herrera (alvherre)
2020-08-31 19:46:50 Álvaro Herrera (alvherre) Attached mail thread 20200810233815.GA18970@alvherre.pgsql
2020-08-31 19:46:50 Álvaro Herrera (alvherre) Created patch record