Make scan-for-legacy-ender-dragon config work again

Portion of diff was dropped in the mappings update commit.

Also remove the option to remove invalid statistics. The server will
automatically do this now as of... 1.13?, our option wasn't even doing anything.

Spigot-Server-Patches/Player.setPlayerProfile-API.patch

@@ -6,7 +6,7 @@ Subject: [PATCH] Player.setPlayerProfile API
 This can be useful for changing name or skins after a player has logged in.
 
 diff --git a/src/main/java/net/minecraft/server/EntityHuman.java b/src/main/java/net/minecraft/server/EntityHuman.java
-index b9e6a18293..73998e5a75 100644
+index d5adc0a24..507641fc6 100644
 --- a/src/main/java/net/minecraft/server/EntityHuman.java
 +++ b/src/main/java/net/minecraft/server/EntityHuman.java
 @@ -0,0 +0,0 @@ public abstract class EntityHuman extends EntityLiving {
@@ -19,7 +19,7 @@ index b9e6a18293..73998e5a75 100644
      private final ItemCooldown ce;
      @Nullable
 diff --git a/src/main/java/net/minecraft/server/LoginListener.java b/src/main/java/net/minecraft/server/LoginListener.java
-index ab85fd9a6e..5778a5201d 100644
+index ca3a211a5..58a2f3d28 100644
 --- a/src/main/java/net/minecraft/server/LoginListener.java
 +++ b/src/main/java/net/minecraft/server/LoginListener.java
 @@ -0,0 +0,0 @@ public class LoginListener implements PacketLoginInListener, ITickable {
@@ -48,7 +48,7 @@ index ab85fd9a6e..5778a5201d 100644
                              uniqueId = i.getId();
                              // Paper end
 diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
-index 45f7a4143f..b1cba904e4 100644
+index 45f7a4143..b1cba904e 100644
 --- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
 +++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
 @@ -0,0 +0,0 @@