Remove duplicate check added by commit b2a5545.

Amit Kapila · Amit Kapila · commit e7b476c657eb · 2020-06-27T09:59:27.000+05:30
As this doesn't cause any harm so we decided to this clean up in HEAD only. Author: Ádám Balogh Discussion: https://postgr.es/m/VI1PR0702MB36631BD67559461AFDE1FEEE81920@VI1PR0702MB3663.eurprd07.prod.outlook.com
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
@@ -7377,7 +7377,7 @@ StartupXLOG(void)
 					 * Wake up any walsenders to notice that we are on a new
 					 * timeline.
 					 */
-					if (switchedTLI && AllowCascadeReplication())
+					if (AllowCascadeReplication())
 						WalSndWakeup();
 				}
 

Original file line number	Diff line number	Diff line change
`@@ -7377,7 +7377,7 @@ StartupXLOG(void)`
`7377`	`7377`	`* Wake up any walsenders to notice that we are on a new`
`7378`	`7378`	`* timeline.`
`7379`	`7379`	`*/`
`7380`		`- if (switchedTLI && AllowCascadeReplication())`
	`7380`	`+ if (AllowCascadeReplication())`
`7381`	`7381`	`WalSndWakeup();`
`7382`	`7382`	`}`
`7383`	`7383`