Removes duplicate position set when splitting grids

There's nothing saying why this is this way and the blame looks like it was an oversight when replacing a bit where they set position and then rotation
Please, oh Chesterton's Fence, spare me your wrath

Robust.Server/Physics/GridFixtureSystem.cs

@@ -268,8 +268,7 @@ private void CheckSplits(EntityUid uid, HashSet<ChunkSplitNode> dirtyNodes)
                     newGrids[i] = newGridUid;
 
                     // Keep same origin / velocity etc; this makes updating a lot faster and easier.
-                    _xformSystem.SetWorldPosition((newGridUid, newGridXform), gridPos);
-                    _xformSystem.SetWorldPositionRotation(newGridUid, gridPos, gridRot, newGridXform); // Why do we set this twice???
+                    _xformSystem.SetWorldPositionRotation(newGridUid, gridPos, gridRot, newGridXform);
                     var splitBody = _bodyQuery.GetComponent(newGridUid);
                     _physics.SetLinearVelocity(newGridUid, mapBody.LinearVelocity, body: splitBody);
                     _physics.SetAngularVelocity(newGridUid, mapBody.AngularVelocity, body: splitBody);