[docs] Ko doc fixes after toc update (#39660)

* update docs

* doc builder working

* make fixup

Author: gante

.github/workflows/build_documentation.yml

@@ -18,10 +18,6 @@ jobs:
       notebook_folder: transformers_doc
       languages: ar de en es fr hi it ko pt tr zh ja te
       custom_container: huggingface/transformers-doc-builder
-      # Temporary pin to work around datasets exception in the docbuilder.Remove after docker images and main have
-      # the right dependencies (which **should** be the case by 2025-07-20). See
-      # https://github.com/huggingface/transformers/actions/runs/16365952006/job/46243081358?pr=38545
-      pre_command: uv pip install datasets>=2.15.0
     secrets:
       token: ${{ secrets.HUGGINGFACE_PUSH }}
       hf_token: ${{ secrets.HF_DOC_BUILD_PUSH }}

.github/workflows/build_pr_documentation.yml

@@ -15,7 +15,3 @@ jobs:
       pr_number: ${{ github.event.number }}
       package: transformers
       languages: en
-      # Temporary pin to work around datasets exception in the docbuilder. Remove after docker images and main have
-      # the right dependencies (which **should** be the case by 2025-07-20). See
-      # https://github.com/huggingface/transformers/actions/runs/16365952006/job/46243081358?pr=38545
-      pre_command: uv pip install datasets>=2.15.0