Remove default grids (content) (#2241)

* Default grids go poof

* Address review

* Update submodule

* Fix DoAfterSystem for entities without grid.

* Fix SubFloorHideSystem for entities without grid.

* Fix ExplosionHelper for coordinates that aren't in a grid

* Fix TurfHelpers' GetWorldTileBox crash in the case of invalid grid

* Fix tile prying component crash when trying to pry space.

* Spill fixes when passing coordinates without grids.

* Are you static'in, son?

* Change SaveLoadSaveTest grid Id hardcoded value
It's still hardcoded, but at least now it's correct!

* Only send debug AI thing if grid is not invalid

* Update submodule.

Co-authored-by: Pieter-Jan Briers <pieterjan.briers+git@gmail.com>

Content.Server/GameObjects/Components/Power/ApcNetComponents/PowerProviderComponent.cs

@@ -113,7 +113,7 @@ namespace Content.Server.GameObjects.Components.Power.ApcNetComponents
 
         private void SetPowerTransferRange(int newPowerTransferRange)
         {
-            foreach (var receiver in _linkedReceivers)
+            foreach (var receiver in _linkedReceivers.ToArray())
             {
                 receiver.ClearProvider();
             }