Revert "Presubmit: ensure empty line between CL title and description"

Revert "Presubmit: ensure empty line between CL title and description"

This reverts commit 9518830650a45446756d7b621fc87e7a8ff52476.

Reason for revert: <INSERT REASONING HERE>

Original change's description:
> Presubmit: ensure empty line between CL title and description
>
> Bug: skia:
> Change-Id: If1b2d655e9be4b960f76d2d17ce1cf1126f7b2d4
> Reviewed-on: https://skia-review.googlesource.com/15624
> Reviewed-by: Eric Boren <borenet@google.com>
> Commit-Queue: Eric Boren <borenet@google.com>
>

TBR=borenet@google.com,rmistry@google.com
NOTRY=true
# Not skipping CQ checks because original CL landed > 1 day ago.

Change-Id: I311ee790f152dbb8325214650838839f6821c995
Reviewed-on: https://skia-review.googlesource.com/15862
Reviewed-by: Ravi Mistry <rmistry@google.com>
Commit-Queue: Ravi Mistry <rmistry@google.com>