BUG: Deprecation warning says to use non-existent symbols #17572
Description
Describe your issue.
There is a deprecation warning for importing MemoizeJac that recommends importing it from scipy.optimize as a new approach, but I can't import it from scipy.optimize.
Reproducing Code Example
Python 3.8.15 | packaged by conda-forge | (default, Nov 22 2022, 08:46:39)
Type 'copyright', 'credits' or 'license' for more information
IPython 7.33.0 -- An enhanced Interactive Python. Type '?' for help.
In [1]: import scipy
In [2]: scipy.__version__
Out[2]: '1.9.3'
In [3]: from scipy.optimize.optimize import MemoizeJac
<ipython-input-3-ad2abe888e13>:1: DeprecationWarning: Please use `MemoizeJac` from the `scipy.optimize` namespace, the `scipy.optimize.optimize` namespace is deprecated.
from scipy.optimize.optimize import MemoizeJac
In [4]: from scipy.optimize import MemoizeJac
---------------------------------------------------------------------------
ImportError Traceback (most recent call last)
<ipython-input-4-2958dec3cdad> in <cell line: 1>()
----> 1 from scipy.optimize import MemoizeJac
ImportError: cannot import name 'MemoizeJac' from 'scipy.optimize' (/home/moorepants/miniconda/lib/python3.8/site-packages/scipy/optimize/__init__.py)
In [5]: import scipy.optimize
In [6]: scipy.optimize.MemoizeJac
---------------------------------------------------------------------------
AttributeError Traceback (most recent call last)
<ipython-input-6-d0f0a395bf46> in <cell line: 1>()
----> 1 scipy.optimize.MemoizeJac
AttributeError: module 'scipy.optimize' has no attribute 'MemoizeJac'
### Error message
```shell
See above.
SciPy/NumPy/Python version information
1.9.3 1.23.5 sys.version_info(major=3, minor=8, micro=15, releaselevel='final', serial=0)