DEP Remove pytorch from environment.yml

This issue has been created since 2022-11-20.

It's one of the heaviest dependencies, and I think it's responsible for bringing in cudatoolkit, cudnn, and mkl

$ grep '"size":' ${CONDA_PREFIX}/conda-meta/*.json | sort -k3rn | column -t | sed 's|/home/marcogorelli/mambaforge/envs/pandas-dev/conda-meta||g' | head -n 20
/cudatoolkit-11.7.0-hd8887f6_10.json:                          "size":  871987469,
/cudnn-8.4.1.50-hed8a83a_0.json:                               "size":  648438607,
/pytorch-1.12.1-cuda112py38hd94e077_201.json:                  "size":  514342178,
/mkl-2022.1.0-h84fe81f_915.json:                               "size":  209326825,
/nccl-2.14.3.1-h0800d71_0.json:                                "size":  152235202,
/magma-2.5.4-h6103c52_2.json:                                  "size":  93350293,
/qt-main-5.15.6-hc525480_0.json:                               "size":  64435513,
/gcc_impl_linux-64-10.4.0-h7ee1905_16.json:                    "size":  48931715,
/pillow-9.2.0-py38ha3b2c9c_2.json:                             "size":  47380059,
/libllvm14-14.0.6-he0ac6c6_0.json:                             "size":  36954351,
/sysroot_linux-64-2.12-he073ed8_15.json:                       "size":  32940552,
/arrow-cpp-9.0.0-py38hc370d79_10_cpu.json:                     "size":  32731227,
/pandoc-2.19.2-h32600fe_1.json:                                "size":  31408180,
/libllvm11-11.1.0-hf817b99_3.json:                             "size":  30536060,
/scipy-1.9.3-py38h8ce737c_2.json:                              "size":  27570711,
/python-3.8.13-h582c2e5_0_cpython.json:                        "size":  26366309,
/libdb-6.2.32-h9c3ff4c_0.json:                                 "size":  24409456,
/mypy-0.981-py38h0a891b7_0.json:                               "size":  16946789,
/icu-70.1-h27087fc_0.json:                                     "size":  14191488,
/bokeh-2.4.3-pyhd8ed1ab_3.json:                                "size":  13940985,

and as far as I can tell it's only used in a single ASV benchmark:

class From3rdParty:
# GH#44616
def setup(self):
try:
import torch
except ImportError:
raise NotImplementedError
row = 700000
col = 64
self.val_tensor = torch.randn(row, col)
def time_from_torch(self):
DataFrame(self.val_tensor)

In which case, it feels a bit wasteful to have everyone install it. We could noticeably cut down the environment size by reducing it - not all contributors have the fastest internet connections so this'd make a difference

More Details About Repo
Owner Name pandas-dev
Repo Name pandas
Full Name pandas-dev/pandas
Language Python
Created Date 2010-08-24
Updated Date 2022-12-07
Star Count 36164
Watcher Count 1118
Fork Count 15472
Issue Count 3683

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