Revert "fix picture subclass destructor doc"

This reverts commit 72be40cbee0b37dbf82d3e26c6aacb4eccd6be28.

Reason for revert: Many build issues.

Original change's description:
> fix picture subclass destructor doc
> 
> Failure to fully parse subclass destructor
> caused bookmaker to drop everything that
> followed. Fix it, and look for subclass
> constructors more thoroughly.
> 
> TBR=caryclark@google.com
> Docs-Preview: https://skia.org/?cl=152500
> Bug: skia:6898
> Change-Id: I623b9d5ea3f633e5e96276c2c9edc608f7b8c008
> Reviewed-on: https://skia-review.googlesource.com/152500
> Reviewed-by: Cary Clark <caryclark@skia.org>
> Commit-Queue: Cary Clark <caryclark@skia.org>
> Auto-Submit: Cary Clark <caryclark@skia.org>

TBR=caryclark@skia.org

Change-Id: I7fc956614aa8239608ab99f7cf9ed089930faa62
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:6898
Reviewed-on: https://skia-review.googlesource.com/152701
Reviewed-by: Jim Van Verth <jvanverth@google.com>
Commit-Queue: Jim Van Verth <jvanverth@google.com>
6 files changed