Revert of For *ToFixed, in debug mode, assert that the value is in range. (patchset #6 id:140001 of https://codereview.chromium.org/1824733002/ )

Reason for revert:
Asserts in Blink rolls:

https://storage.googleapis.com/chromium-layout-test-archives/linux_blink_rel/84520/layout-test-results/results.html

STDERR: [1:1:0407/120919:1455366829:INFO:SkFixed.h(88)] ../../third_party/skia/include/private/SkFixed.h:88: fatal error: ""truncf(x * (1 << 16)) == static_cast<float>

Original issue's description:
> For *ToFixed, in debug mode, assert that the value is in range.
>
> Use SkFloatPinToFixed in SkTwoPointConicalGradient.cpp because it is failing in DM. fmalita is working on replacing this code with the 4f version, so I'm not bothering to fix it. (The beginnings of a real fix are in https://codereview.chromium.org/1767163003, which I do not plan to commit.)
>
> BUG=skia:4632
> GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1824733002
>
> Committed: https://skia.googlesource.com/skia/+/93dc33972cd6a418e84270298b856d2de08d9c1c

TBR=mtklein@google.com,reed@google.com,benjaminwagner@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:4632

Review URL: https://codereview.chromium.org/1868933004
3 files changed