Remove unncessary recover() calls (#14066)

* Remove unncessary recover() calls

A recover which is not called inside a defer will always return nil.
So there's no use of calling it.

And even if we did call it inside a defer, recovering and immediately
panicking does not make sense either. So we just remove it.

* Fixed another instance

api4/apitestlib.go

@@ -246,10 +246,6 @@ func (me *TestHelper) TearDown() {
 	me.ShutdownApp()
 
 	utils.EnableDebugLogForTest()
-
-	if err := recover(); err != nil {
-		panic(err)
-	}
 }
 
 var initBasicOnce sync.Once