[Tracking Issue] Remove MXNet Dependency

[tqchen]

MXNet has been archived and likely future versions of tvm should not depend on it. This is a tracking issue for us to remove the related stale testcases and documentations that depends on mxnet

[Lunderberg]

I have a rough list of the impacted files that will need to be updated, from putting together #16546

• Depend on mxnet's AWS

  • gallery/how_to/compile_models/from_mxnet.py
  • gallery/how_to/deploy_models/deploy_model_on_nano.py
  • gallery/how_to/deploy_models/deploy_model_on_rasp.py
  • gallery/how_to/deploy_models/deploy_quantized.py
  • gallery/how_to/extend_tvm/bring_your_own_datatypes.py
  • gallery/how_to/tune_with_autoscheduler/tune_network_arm.py
  • gallery/how_to/tune_with_autoscheduler/tune_network_cuda.py
  • gallery/how_to/tune_with_autoscheduler/tune_network_mali.py
  • gallery/how_to/tune_with_autoscheduler/tune_network_x86.py
  • rust/tvm/examples/resnet
  • tests/python/frontend/mxnet/test_forward.py
  • vta/scripts/tune_resnet.py
  • vta/tutorials/autotvm/tune_alu_vta.py
  • vta/tutorials/autotvm/tune_relay_vta.py
  • vta/tutorials/frontend/deploy_classification.py

• Depend on mxnet's AWS (commented out for CI)

  • gallary/how_to/tune_with_autoscheduler/tune_network_cuda.py
  • gallary/how_to/tune_with_autoscheduler/tune_network_mali.py
  • gallary/how_to/tune_with_autoscheduler/tune_sparse_x86.py
  • gallary/how_to/tune_with_autoscheduler/tune_network_arm.py
  • gallary/how_to/tune_with_autoscheduler/tune_conv2d_layer_cuda.py
  • gallary/how_to/tune_with_autoscheduler/tune_conv2d_layer_cuda.py
  • gallary/how_to/tune_with_autoscheduler/tune_network_x86.py
  • gallary/how_to/tune_with_autotvm/tune_conv2d_cuda.py
  • gallary/how_to/tune_with_autotvm/tune_relay_arm.py
  • gallary/how_to/tune_with_autotvm/tune_relay_x86.py
  • gallary/how_to/tune_with_autotvm/tune_relay_mobile_gpu.py
  • gallary/how_to/tune_with_autotvm/tune_relay_cuda.py

• Depend on https://github.com/dmlc/mxnet.js

  • gallery/how_to/deploy_models/deploy_model_on_android.py

[Hzfengsy]

Updates: #16572