Revert "Enable dispatch to tinygemm int4 and int8 kernels for quantized tensor"

[cpuhrsch]

Reverts #230

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/ao/246

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❌ 2 New Failures, 1 Unrelated Failure

As of commit dba8e10 with merge base 10da375 ():

NEW FAILURES - The following jobs have failed:

• .github/workflows/build.yml (gh)
• Run Regression Tests / test (CPU Nightly, linux.4xlarge, --pre torch --index-url https://download.pytorch.org/whl/nightl... / linux-job (gh)
  test/quantization/test_quant_primitives.py::TestQuantPrimitives::test_quantize_dequantize_group_sym

BROKEN TRUNK - The following job failed but were present on the merge base:

👉 Rebase onto the `viable/strict` branch to avoid these failures

• Run Regression Tests / test (CUDA Nightly, linux.g5.12xlarge.nvidia.gpu, --pre torch --index-url https://download.pytorc... / linux-job (gh) (trunk failure)

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[jerryzh168]

it's not broken by this PR I think

[jerryzh168]

CI is broken by changes in pytorch I think, and should be fixed by #244

[cpuhrsch]

Great, thanks!