Update docs.yml (#264)

Signed-off-by: Francis Williams <fwilliams@users.noreply.github.com>

Author: fwilliams

.github/workflows/docs.yml

@@ -103,8 +103,6 @@ jobs:
       - name: Build docs
         run: |
           micromamba activate fvdb
-          which pip
-          pip install -e .
           which sphinx-build
           sphinx-build docs/ -E -a _docs_build