remove SkPaint Align from doc examples

remove SkPaint::.*_Align from doc examples

TBR=reed@oogle.com
NOTRY=true
Docs-Preview: https://skia.org/?cl=166561
Bug: skia:
Change-Id: I34e02c96852035400803555816af2d062ebc5a95
Reviewed-on: https://skia-review.googlesource.com/c/166561
Commit-Queue: Cary Clark <caryclark@skia.org>
Auto-Submit: Cary Clark <caryclark@skia.org>
Reviewed-by: Cary Clark <caryclark@skia.org>
5 files changed