Remove SK_SUPPORT_LEGACY_SCALAR_MAPPOINTS

Legacy Skia flag.

BUG=475022
TBR=reed@google.com

Review URL: https://codereview.chromium.org/1071463004

Cr-Commit-Position: refs/heads/master@{#324273}

skia/config/SkUserConfig.h

@@ -257,10 +257,6 @@ SK_API void SkDebugf_FileLine(const char* file, int line, bool fatal,
 #   define SK_SUPPORT_LEGACY_PUBLIC_IMAGEINFO_FIELDS
 #endif
 
-#ifndef    SK_SUPPORT_LEGACY_SCALAR_MAPPOINTS
-#   define SK_SUPPORT_LEGACY_SCALAR_MAPPOINTS
-#endif
-
 #ifndef    SK_IGNORE_ETC1_SUPPORT
 #   define SK_IGNORE_ETC1_SUPPORT
 #endif

skia/skia_test_expectations.txt

@@ -91,4 +91,11 @@ crbug.com/475017 virtual/slimmingpaint/fast/canvas/canvas-composite-video.html [
 crbug.com/475017 virtual/slimmingpaint/fast/canvas/canvas-composite.html [ NeedsManualRebaseline ]
 crbug.com/475017 virtual/slimmingpaint/svg/filters/feComposite.svg [ NeedsManualRebaseline ]
 
+# SK_SUPPORT_LEGACY_SCALAR_MAPPOINTS
+crbug.com/475022 media/audio-repaint.html [ NeedsManualRebaseline ]
+crbug.com/475022 svg/custom/linking-a-03-b-viewBox-transform.svg [ NeedsManualRebaseline ]
+crbug.com/475022 svg/custom/marker-orient-auto.html [ NeedsManualRebaseline ]
+crbug.com/475022 svg/text/text-path-01-b.svg [ NeedsManualRebaseline ]
+crbug.com/475022 virtual/slimmingpaint/svg/text/text-path-01-b.svg [ NeedsManualRebaseline ]
+
 # END OVERRIDES HERE (this line ensures that the file is newline-terminated)