Revert "add color4f to docs"

This reverts commit 434b80f82fee3c21ae330363354ae2669ed137f5.

Reason for revert: Reverting 4f CL.

Original change's description:
> add color4f to docs
> 
> Add SkPaint::setColor4f and getColor4f. Another pass will
> be required later once fiddle updates itself.
> 
> Also add checks to bookmaker so it doesn't write status
> if generated files are unchanged; and deletes temporary
> files in working directory.
> 
> R=​brianosman@google.com
> 
> Docs-Preview: https://skia.org/?cl=151365
> Bug: skia:6898
> Change-Id: I8059641f19017a86fc4b63ebd9ff784716365967
> Reviewed-on: https://skia-review.googlesource.com/151365
> Commit-Queue: Cary Clark <caryclark@skia.org>
> Commit-Queue: Brian Osman <brianosman@google.com>
> Auto-Submit: Cary Clark <caryclark@skia.org>
> Reviewed-by: Brian Osman <brianosman@google.com>

TBR=brianosman@google.com,caryclark@skia.org

Change-Id: Ice33fe50105959f104b3907a07eb3e8c51641ec2
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:6898
Reviewed-on: https://skia-review.googlesource.com/151543
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
5 files changed