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/Timings-v2.patch

@@ -906,7 +906,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
          this.a = acustomfunction_c;
      }
  
-+    public MinecraftKey getMinecraftKey() { return this.a(); } // Paper - OBFHELPER
++    public final MinecraftKey getMinecraftKey() { return this.a(); } // Paper - OBFHELPER
      public MinecraftKey a() {
          return this.b;
      }