♻️(react) delete duplicated SelectMultiProps

During dev I realized that we had a duplicated SelectMultiProps which
was really misleanding.

packages/react/src/components/Forms/Select/multi-common.tsx

@@ -37,14 +37,11 @@ export function getMultiOptionsFilter(
   };
 }
 
-export type SelectMultiProps = Omit<SelectProps, "onChange"> & {
+export type SubProps = Omit<SelectProps, "onChange"> & {
   onChange?: (event: { target: { value: string[] } }) => void;
-};
-
-export interface SubProps extends SelectMultiProps {
-  selectedItems: Option[];
   onSelectedItemsChange: (selectedItems: Option[]) => void;
-}
+  selectedItems: Option[];
+};
 
 export const SelectMultiAux = ({
   options,