Too much cache for display user

When I ran command below:
```
commerce:store:display -n 1commerce -u sampleScratch -b samplebuyer@1commerce.com
```
and try it with another buyer
```
commerce:store:display -n 1commerce -u sampleScratch -b buyer@1commerce.com
```
same password was return.

### Suggested Solution
remove code returning cached userInfo [here](https://github.com/forcedotcom/commerce-on-lightning/blob/develop/src/commands/commerce/store/create.ts#L201)

Start in src/commands/commerce/store/create.ts at the linked line where cached userInfo is returned. Run the two commerce:store:display commands from the issue with their different buyer emails and verify that the returned password is no longer incorrectly identical for both buyers.

Written by the indexing model from the issue text.