Updated Upstream (Bukkit/CraftBukkit/Spigot) (#5904)

Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
70d24eb8 SPIGOT-6587: Update documentation/error of drop chance API

CraftBukkit Changes:
470050ad SPIGOT-6587: Update documentation/error of drop chance API
1c39efa3 Fix Inventory#getViewers on the player inventory not returning the player first time their inventory is opened
d161627d Fix PrepareItemCraftEvent#isRepair
aa1fae73 SPIGOT-6586: EntityChangeBlockEvent for falling block does not cancel properly
8a04072e SPIGOT-6583: Throwing eggs doesn't make sounds

Spigot Changes:
f773da84 Remove redundant patch
cd367234 Rebuild patches

patches/server/0061-Remove-Metadata-on-reload.patch

@@ -7,10 +7,10 @@ Metadata is not meant to persist reload as things break badly with non primitive
 This will remove metadata on reload so it does not crash everything if a plugin uses it.
 
 diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
-index 610af41f33a41bd0465eace2c3e2b6ed8eeceac7..568777b6cad6f87f1ad7be361ebe47a6bc55cb2d 100644
+index da1dbb6768825c42bb1d7533612be1f8accb2497..be2f148d2b045d704df35b952b03cf88279de64f 100644
 --- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
 +++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
-@@ -872,8 +872,16 @@ public final class CraftServer implements Server {
+@@ -868,8 +868,16 @@ public final class CraftServer implements Server {
              world.paperConfig.init(); // Paper
          }