chore(sqllab): Cleanup /tables/... endpoint (#21284)

superset-frontend/src/components/TableSelector/TableSelector.test.tsx

@@ -31,7 +31,6 @@ const createProps = (props = {}) => ({
     id: 1,
     database_name: 'main',
     backend: 'sqlite',
-    allow_multi_schema_metadata_fetch: false,
   },
   schema: 'test_schema',
   handleError: jest.fn(),

superset-frontend/src/components/TableSelector/index.tsx

@@ -112,9 +112,9 @@ export interface TableOption {
 }
 
 export const TableOption = ({ table }: { table: Table }) => {
-  const { label, type, extra } = table;
+  const { value, type, extra } = table;
   return (
-    <TableLabel title={label}>
+    <TableLabel title={value}>
       {type === 'view' ? (
         <Icons.Eye iconSize="m" />
       ) : (
@@ -133,7 +133,7 @@ export const TableOption = ({ table }: { table: Table }) => {
           size="l"
         />
       )}
-      {label}
+      {value}
     </TableLabel>
   );
 };
@@ -286,9 +286,7 @@ const TableSelector: FunctionComponent<TableSelectorProps> = ({
   );
 
   function renderTableSelect() {
-    const disabled =
-      (currentSchema && !formMode && readOnly) ||
-      (!currentSchema && !database?.allow_multi_schema_metadata_fetch);
+    const disabled = (currentSchema && !formMode && readOnly) || !currentSchema;
 
     const header = sqlLabMode ? (
       <FormLabel>{t('See table schema')}</FormLabel>