Remove SkMaxScalar and SkMinScalar

Use std::max and std::min instead

Change-Id: Icf3796609e5cb511687fb50bd31229ae4b6b9b39
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/268841
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
diff --git a/gm/drawbitmaprect.cpp b/gm/drawbitmaprect.cpp
index e4bfac8..ab73b6b 100644
--- a/gm/drawbitmaprect.cpp
+++ b/gm/drawbitmaprect.cpp
@@ -60,7 +60,7 @@
 
     SkPoint     pt = { wScalar / 2, hScalar / 2 };
 
-    SkScalar    radius = 4 * SkMaxScalar(wScalar, hScalar);
+    SkScalar    radius = 4 * std::max(wScalar, hScalar);
 
     SkColor     colors[] = { SK_ColorRED, SK_ColorYELLOW,
                              SK_ColorGREEN, SK_ColorMAGENTA,