Remove hack in Timestamp parser now that 'remark-breaks' has addressed the original problem.
Remove hack in Timestamp parser now that 'remark-breaks' has addressed the original problem.

## Issue
Closes 5523: timestamps not interpreted in some cases

## Notes
`remark-breaks` previously kept repeating the same index in the loop, causing some corner-cases to be parsed oddly. I added code to address that.

Later, `remark-breaks` fixed the problem and we recently just bumped up the componnent version. My hack is no longer necesary.

lbryio/lbry-app,lbryio/lbry-app