Remove loading property when using emptyWhileLoading.

Author: Madeorsk

docs/ReferenceFieldBase.md

@@ -227,7 +227,6 @@ import { ListBase, RecordsIterator, ReferenceFieldBase } from 'react-admin';
 
 export const PostList = () => (
     <ListBase
-        loading={null}
         error={null}
         offline={null}
         emptyWhileLoading

docs/ReferenceManyFieldBase.md

@@ -76,7 +76,6 @@ import { ListBase, RecordsIterator, ReferenceManyFieldBase } from 'react-admin';
 
 export const PostList = () => (
     <ListBase
-        loading={null}
         error={null}
         offline={null}
         emptyWhileLoading

docs_headless/src/content/docs/ReferenceFieldBase.md

@@ -220,7 +220,6 @@ import { ListBase, RecordsIterator, ReferenceFieldBase } from 'ra-core';
 
 export const PostList = () => (
     <ListBase
-        loading={null}
         error={null}
         offline={null}
         emptyWhileLoading

docs_headless/src/content/docs/ReferenceManyFieldBase.md

@@ -73,7 +73,6 @@ import { ListBase, RecordsIterator, ReferenceManyFieldBase } from 'ra-core';
 
 export const PostList = () => (
     <ListBase
-        loading={null}
         error={null}
         offline={null}
         emptyWhileLoading

packages/ra-core/src/controller/field/ReferenceManyFieldBase.stories.tsx

@@ -134,12 +134,7 @@ export const InAList = ({ dataProvider = dataProviderWithAuthorList }) => (
             <Resource
                 name="authors"
                 list={
-                    <ListBase
-                        loading={null}
-                        error={null}
-                        offline={null}
-                        emptyWhileLoading
-                    >
+                    <ListBase error={null} offline={null} emptyWhileLoading>
                         <RecordsIterator
                             render={author => (
                                 <div>