Update Sphinx-gallery to 0.11.1 (#2638)

Summary:
The minor release fixes some gallery issue, which allows to remove
some of the customization we had in https://github.com/pytorch/audio/issues/2629

https://output.circle-artifacts.com/output/job/553a9b98-8260-4cb4-a681-20ef97d2c33e/artifacts/0/docs/pipelines.html#torchaudio.pipelines.Wav2Vec2ASRBundle

Pull Request resolved: https://github.com/pytorch/audio/pull/2638

Reviewed By: carolineechen, nateanl

Differential Revision: D38909097

Pulled By: mthrok

fbshipit-source-id: 78346d93b54fca2a19b28991c224324ef53221c9

docs/requirements.txt

@@ -11,7 +11,7 @@ pyparsing<3,>=2.0.2
 sphinx==3.5.4
 sphinxcontrib.katex==0.8.6
 sphinxcontrib.bibtex==2.4.2
-sphinx_gallery==0.11
+sphinx_gallery==0.11.1
 nbsphinx==0.8.8
 
 # https://github.com/bmcfee/resampy/issues/106

docs/source/_static/css/custom.css

@@ -23,11 +23,3 @@ article.pytorch-article .sphx-glr-thumbnails .sphx-glr-thumbcontainer {
     margin-right: 0;
     margin-left: 0;
 }
-article.pytorch-article .sphx-glr-thumbnails {
-    display: flex;
-    grid-template-columns: none;
-}
-article.pytorch-article .sphx-glr-thumbnails .sphx-glr-thumbnails {
-    display: grid;
-    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
-}