Remove the delaunay triangulation code which is now handled by Qhull
via matplotlib.tri
Moved to qt_compat.py. Renamed because it now handles Qt5 as well.
The GraphicsContextBase.set_graylevel, FigureCanvasBase.onHilite and
mpl_toolkits.axes_grid1.mpl_axes.Axes.toggle_axisline methods have been
removed.
The ArtistInspector.findobj method, which was never working due to the lack
of a get_children method, has been removed.
The deprecated point_in_path, get_path_extents,
point_in_path_collection, path_intersects_path,
convert_path_to_polygons, cleanup_path and clip_path_to_rect
functions in the matplotlib.path module have been removed. Their
functionality remains exposed as methods on the Path class.
Support for setting an Axes' aspect to "normal" has been removed, in
favor of the synonym "auto".
The shading kwarg to pcolor has been removed. Set edgecolors
appropriately instead.
The matplotlib.backends.backend_ps.seq_allequal function has been removed.
Use np.array_equal instead.
The deprecated matplotlib.rcsetup.validate_maskedarray,
matplotlib.rcsetup.deprecate_savefig_extension and
matplotlib.rcsetup.validate_tkpythoninspect functions, and associated
savefig.extension and tk.pythoninspect rcparams entries have been
removed.