Removes the previously deprecated and unused `tsConfig` option from the
`@nx/jest:jest` executor.
BREAKING CHANGE: The previously deprecated and unused `tsConfig` option
from the `@nx/jest:jest` executor was removed.
<!-- Please make sure you have read the submission guidelines before
posting an PR -->
<!--
https://github.com/nrwl/nx/blob/master/CONTRIBUTING.md#-submitting-a-pr
-->
<!-- Please make sure that your commit message follows our format -->
<!-- Example: `fix(nx): must begin with lowercase` -->
<!-- If this is a particularly complex change or feature addition, you
can request a dedicated Nx release for this pull request branch. Mention
someone from the Nx team or the `@nrwl/nx-pipelines-reviewers` and they
will confirm if the PR warrants its own release for testing purposes,
and generate it for you if appropriate. -->
## Current Behavior
The syntax to test a single file is different when using the jest
executor versus the jest cli
```sh
jest <file>
# vs
nx test project --testFile <file>
```
## Expected Behavior
I would expect the jest executor to support a single positional argument
as well
```sh
nx test project <file>
```
This is one of the common questions/complaints that I hear from
developers when transitioning from our standalone apps to our monorepo
This change supports both syntaxes so that this is not a breaking change
and prints a warning when both are used
