remove unmaintained blist (#23957)

This PR removes the unused `blist` dep. Causing issues during `py310` upgrade path.

doc/source/custom_directives.py

@@ -89,7 +89,6 @@ def update_context(app, pagename, templatename, context, doctree):
 MOCK_MODULES = [
     "ax",
     "ax.service.ax_client",
-    "blist",
     "ConfigSpace",
     "dask.distributed",
     "gym",

docker/base-deps/Dockerfile

@@ -56,12 +56,10 @@ RUN sudo apt-get update -y && sudo apt-get upgrade -y \
         # Necessary for Dataset to work properly.
         numpy\>=1.20 \
         psutil \
-        blist \ 
-    # blist is needed for numpy (which is re-installed when ray is installed)
     # To avoid the following error on Jenkins:
     # AttributeError: 'numpy.ufunc' object has no attribute '__module__'
     && $HOME/anaconda3/bin/pip uninstall -y dask \ 
-    # We install cmake temporarily to get psutil, blist
+    # We install cmake temporarily to get psutil
     && sudo apt-get autoremove -y cmake zlib1g-dev \
         # We keep g++ on GPU images, because uninstalling removes CUDA Devel tooling
         $(if [ "$BASE_IMAGE" = "ubuntu:focal" ]; then echo \

docker/ray-worker-container/Dockerfile

@@ -44,12 +44,10 @@ RUN apt-get update -y && sudo apt-get upgrade -y \
         cython==0.29.26 \
         numpy==1.15.4 \
         psutil \
-        blist \
-    # blist is needed for numpy (which is re-installed when ray is installed)
     # To avoid the following error on Jenkins:
     # AttributeError: 'numpy.ufunc' object has no attribute '__module__'
     && $HOME/anaconda3/bin/pip uninstall -y dask \
-    # We install cmake temporarily to get psutil, blist
+    # We install cmake temporarily to get psutil
     && sudo apt-get autoremove -y cmake zlib1g-dev \
         # We keep g++ on GPU images, because uninstalling removes CUDA Devel tooling
         $(if [ "$BASE_IMAGE" = "ubuntu:focal" ]; then echo \

python/requirements.txt

@@ -47,7 +47,6 @@ aiorwlock
 
 # Requirements for running tests
 pyarrow >= 6.0.1, < 7.0.0
-blist; platform_system != "Windows"
 azure-cli-core==2.29.1
 azure-identity==1.7.0
 azure-mgmt-compute==23.1.0