Remove SkTMin and SkTMax

Use std::min and std::max everywhere.

SkTPin still exists. We can't use std::clamp yet, and even when
we can, it has undefined behavior with NaN. SkTPin is written
to ensure that we return a value in the [lo, hi] range.

Change-Id: I506852a36e024ae405358d5078a872e2c77fa71e
Docs-Preview: https://skia.org/?cl=269357
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/269357
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Mike Reed <reed@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
diff --git a/src/gpu/gradients/generated/GrTwoPointConicalGradientLayout.cpp b/src/gpu/gradients/generated/GrTwoPointConicalGradientLayout.cpp
index 69d4d76..5b5b1d8 100644
--- a/src/gpu/gradients/generated/GrTwoPointConicalGradientLayout.cpp
+++ b/src/gpu/gradients/generated/GrTwoPointConicalGradientLayout.cpp
@@ -176,7 +176,7 @@
             radius2 += offset;
         }
     } else if (type == static_cast<int>(Type::kStrip)) {
-        radius1 = SkTMax(radius1, .1f);  // Make sure that the radius is non-zero
+        radius1 = std::max(radius1, .1f);  // Make sure that the radius is non-zero
         radius2 = radius1;
         // Make sure that the centers are different
         if (SkScalarNearlyZero(SkPoint::Distance(center1, center2))) {