revert unnecessary changes

Author: ethanalvizo

packages/iris-grid/src/IrisGridCacheUtils.ts

@@ -69,10 +69,12 @@ function areIrisGridStatesEqual(
 
   return (
     irisGridStateA === irisGridStateB ||
-    (irisGridStateA.metrics?.userColumnWidths ===
-      irisGridStateB.metrics?.userColumnWidths &&
-      irisGridStateA.metrics?.userRowHeights ===
-        irisGridStateB.metrics?.userRowHeights &&
+    (irisGridStateA.metrics != null &&
+      irisGridStateB.metrics != null &&
+      irisGridStateA.metrics.userColumnWidths ===
+        irisGridStateB.metrics.userColumnWidths &&
+      irisGridStateA.metrics.userRowHeights ===
+        irisGridStateB.metrics.userRowHeights &&
       compareStateKeys.every(
         key => irisGridStateA[key] === irisGridStateB[key]
       ))