fix(dropdown): revert memoization of togglebuttonprops (#19176)

Co-authored-by: kennylam <[email protected]>

Author: annawen1

packages/react/src/components/Dropdown/Dropdown.tsx

@@ -501,13 +501,9 @@ const Dropdown = React.forwardRef(
 
     // needs to be Capitalized for react to render it correctly
     const ItemToElement = itemToElement;
-    const toggleButtonProps = useMemo(
-      () =>
-        getToggleButtonProps({
-          'aria-label': ariaLabel || deprecatedAriaLabel,
-        }),
-      [getToggleButtonProps, ariaLabel, deprecatedAriaLabel, isOpen]
-    );
+    const toggleButtonProps = getToggleButtonProps({
+      'aria-label': ariaLabel || deprecatedAriaLabel,
+    });
 
     const helper =
       helperText && !isFluid ? (
@@ -687,13 +683,6 @@ const Dropdown = React.forwardRef(
                   item,
                   index,
                 });
-                if (
-                  item !== null &&
-                  typeof item === 'object' &&
-                  Object.prototype.hasOwnProperty.call(item, 'id')
-                ) {
-                  itemProps.id = item['id'];
-                }
                 const title =
                   isObject && 'text' in item && itemToElement
                     ? item.text