very light cleanup (formatting; remove packages which are also in requires-install.txt)

Author: emilykl

packages/python/plotly/requires-optional.txt

@@ -13,17 +13,16 @@
 ###                                                             ###
 ###################################################################
 
-## numpy (technically, this is covered by matplotlib's deps) ##
+## numpy (required by Plotly Express) ##
 numpy
 
-## matplotlylib dependencies - moving away from 1.3.1 ##
+## matplotlylib dependencies ##
 # matplotlib==2.2.2
 
 ## testing dependencies ##
 coverage==4.3.1
 mock==2.0.0
 pytest==8.1.1
-backports.tempfile==1.0
 xarray
 pytz
 
@@ -35,7 +34,6 @@ psutil
 pre-commit
 black==22.3.0
 
-
 ## codegen dependencies ##
 inflect
 
@@ -45,22 +43,21 @@ colorcet
 ## ipython ##
 ipython
 
-## pandas deps for some matplotlib functionality ##
+## pandas (for some matplotlib functionality) ##
 pandas
-narwhals>=1.13.3
 
-## scipy deps for some FigureFactory functions ##
+## scipy deps (for some FigureFactory functions) ##
 scipy
 
 ## jupyter ##
 jupyter
 jupyterlab
 ipykernel
 
-## deps for _county_choropleth.py figure factory
+## deps for _county_choropleth.py figure factory ##
 pyshp
 geopandas
 shapely
 
-## image uri conversion
+## image uri conversion ##
 pillow