Clean up a lot of obfuscation helpers and impls

This fixes a bug with obfuscation helpers for attack cooldown
But every other change should stay the same.

Cleaning up a lot of helpers that pointed to already unobfuscated items.
Also adds final to many of the obfhelpers to assist with inlining.

This is pretty much a patch maintenance

Spigot-Server-Patches/Add-PrepareResultEvent.patch

@@ -15,7 +15,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
          return nonnulllist;
      }
  
-+    public void notifyListeners() { this.c(); } // Paper - OBFHELPER
++    public final void notifyListeners() { this.c(); } // Paper - OBFHELPER
      public void c() {
          int i;