gh-40668: remove some deprecations in plot folder
    
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- File: src/sage/plot/histogram.py ; PR: #25260 ; Closed Date:
2018-10-20
- File: src/sage/plot/plot3d/list_plot3d.py ; PR: #27084 ; Closed Date:
2019-01-26
- File: src/sage/plot/matrix_plot.py ; PR: #27891 ; Closed Date:
2020-02-25
- File: src/sage/plot/graphics.py ; PR: #28675 ; Closed Date: 2019-11-24


### 📝 Checklist

- [x] The title is concise and informative.
- [x] The description explains in detail what this PR is about.
- [x] I have linked a relevant issue or discussion.
    
URL: #40668
Reported by: Frédéric Chapoton
Reviewer(s): David Coudert

Author: Release Manager

src/sage/plot/graphics.py

@@ -3552,28 +3552,3 @@ def inset(self, graphics, pos=None, fontsize=None):
         elif 'fontsize' not in graphics._extra_kwds:
             graphics._extra_kwds['fontsize'] = 6
         return MultiGraphics([(self, pos0), (graphics, pos)])
-
-
-# Deprecation notice for GraphicsArray import
-def GraphicsArray(*args, **kwargs):
-    r"""
-    This is deprecated (see :issue:`28675`).
-    Use :class:`sage.plot.multigraphics.GraphicsArray` instead.
-
-    TESTS::
-
-        sage: from sage.plot.graphics import GraphicsArray
-        sage: c = circle((0,0), 1)
-        sage: G = GraphicsArray([c, c])
-        doctest:...: DeprecationWarning: GraphicsArray must be imported from
-        sage.plot.multigraphics and no longer from sage.plot.graphics.
-        See https://github.com/sagemath/sage/issues/28675 for details.
-        sage: G
-        Graphics Array of size 1 x 2
-    """
-    from .multigraphics import GraphicsArray as NewGraphicsArray
-    from sage.misc.superseded import deprecation
-    deprecation(28675, "GraphicsArray must be imported from "
-                "sage.plot.multigraphics and no longer from "
-                "sage.plot.graphics.")
-    return NewGraphicsArray(*args, **kwargs)

src/sage/plot/histogram.py

@@ -52,9 +52,6 @@ def __init__(self, datalist, options):
         """
         import numpy as np
         self.datalist = np.asarray(datalist, dtype=float)
-        if 'normed' in options:
-            from sage.misc.superseded import deprecation
-            deprecation(25260, "the 'normed' option is deprecated. Use 'density' instead.")
         if 'linestyle' in options:
             from sage.plot.misc import get_matplotlib_linestyle
             options['linestyle'] = get_matplotlib_linestyle(
@@ -160,13 +157,12 @@ def _allowed_options(self):
                 'rwidth': 'The relative width of the bars as a fraction of the bin width',
                 'cumulative': '(True or False) If True, then a histogram is computed in which each bin gives the counts in that bin plus all bins for smaller values.  Negative values give a reversed direction of accumulation.',
                 'range': 'A list [min, max] which define the range of the histogram. Values outside of this range are treated as outliers and omitted from counts.',
-                'normed': 'Deprecated. Use density instead.',
                 'density': '(True or False) If True, the counts are normalized to form a probability density. (n/(len(x)*dbin)',
                 'weights': 'A sequence of weights the same length as the data list. If supplied, then each value contributes its associated weight to the bin count.',
                 'stacked': '(True or False) If True, multiple data are stacked on top of each other.',
                 'label': 'A string label for each data list given.'}
 
-    def _repr_(self):
+    def _repr_(self) -> str:
         """
         Return text representation of this histogram graphics primitive.
 

src/sage/plot/matrix_plot.py

@@ -552,20 +552,7 @@ def matrix_plot(mat, xrange=None, yrange=None, **options):
         sage: P = matrix_plot(random_matrix(RDF, 5))
         sage: P.aspect_ratio()
         1
-
-    The origin keyword is deprecated::
-
-        sage: matrix_plot(identity_matrix(100), origin='lower')
-        doctest:...: DeprecationWarning: the option 'origin' is replaced by 'flip_y'
-        See https://github.com/sagemath/sage/issues/27891 for details.
-        Graphics object consisting of 1 graphics primitive
     """
-    if 'origin' in options:
-        from sage.misc.superseded import deprecation
-        deprecation(27891, "the option 'origin' is replaced by 'flip_y'")
-        options['flip_y'] = (options['origin'] != 'lower')
-        del options['origin']
-
     import numpy as np
     import scipy.sparse as scipysparse
     from sage.plot.graphics import Graphics

src/sage/plot/plot3d/list_plot3d.py

@@ -5,7 +5,6 @@
 from sage.structure.element import Matrix
 from sage.matrix.constructor import matrix
 from sage.rings.real_double import RDF
-from sage.misc.superseded import deprecation
 
 
 def list_plot3d(v, interpolation_type='default', point_list=None, **kwds):
@@ -247,21 +246,8 @@ def list_plot3d(v, interpolation_type='default', point_list=None, **kwds):
         Traceback (most recent call last):
         ...
         ValueError: we need at least 3 points to perform the interpolation
-
-    TESTS::
-
-        sage: P = list_plot3d([(0, 0, 1), (2, 3, 4)], texture='tomato')
-        doctest:warning...:
-        DeprecationWarning: please use 'color' instead of 'texture'
-        See https://github.com/sagemath/sage/issues/27084 for details.
     """
     import numpy
-    if 'texture' in kwds:
-        deprecation(27084, "please use 'color' instead of 'texture'")
-        txtr = kwds.pop('texture')
-        if txtr == "automatic":
-            txtr = "lightblue"
-        kwds['color'] = txtr
     if isinstance(v, Matrix):
         if (interpolation_type == 'default' or
                 interpolation_type == 'linear' and 'num_points' not in kwds):