Add TorchData as a required dependency in TorchText for 0.12.0 release

[Nayef211]

🚀 Feature

TorchData is currently an optional dependency which means users have to pip install torchdata if they want to be able to use our datasets. Since datasets are a core feature of TorchText, we want to improve the user experience by making TorchData a required dependency.

After the next torch and torchdata branch cuts for version 1.12, we want to take a hard dependency on the torchdata nightlies.

[Nayef211]

cc @atalman @malfet @parmeet @ejguan @seemethere

[Nayef211]

@atalman @malfet @seemethere @ejguan do you guys know if we have the go ahead to make TorchData as a required dep moving forward? I know we were aiming to do this with the last release but it got pushed back to the 0.13 release instead.

[ejguan]

Yeah, it would be great if we TorchData are aware of the requirements/criteria to make this happen. Then, we can investigate if we have any step missing.

[ejguan]

After #1979 is fixed, could we start to make torchdata as a hard dependency in the main branch? Then, we will be able to spend time on figuring out what's wrong with the installation script.

[Nayef211]

Closed by #1985