[smp]When does the second argument of the function prvYieldForTask need to be set to TRUE?

source code: FreeRTOS/FreeRTOS-Kernel at smp (github.com)

0,When does the second argument of the function prvYieldForTask need to be set to TRUE?
1,Why is the function call(prvYieldForTask) not like this at the xTaskRemoveFromEventList?
prvYieldForTask(pxUnblockedTCB, pdTRUE);

Please take a look at the latest code in the main branch which does not have this parameter - https://github.com/FreeRTOS/FreeRTOS-Kernel/blob/main/tasks.c#L787.