Bug Report: Villagers No Longer Fear Zombie Pigmen
Description:
In Minecraft version 1.20.4, villagers no longer exhibit fear towards zombie pigmen, contrary to their behavior in version 1.11. This change in behavior is observed consistently across different instances of the game and represents a departure from the established interaction between villagers and zombie pigmen. 

Steps to Reproduce:

1. Launch Minecraft version 1.20.4.
2. Locate a village populated by villagers.
3. Introduce a zombie pigman into the vicinity of the village.
4. Observe the villagers' reaction to the presence of the zombie pigman.

Observed Behavior:
Villagers within the game do not display any signs of fear or avoidance in response to the presence of zombie pigmen. Despite the potential threat posed by these hostile mobs, villagers continue their usual activities without any apparent concern for their safety.

Expected Behavior:
In previous versions of Minecraft, including version 1.11, villagers would exhibit fear and avoidance behavior when confronted with zombie pigmen, similar to their reactions towards other hostile mobs such as zombies.