Remove SK_SUPPORT_LEGACY_DEEPFLATTENING.

src/effects/Sk1DPathEffect.cpp

Index: src/effects/Sk1DPathEffect.cpp
diff --git a/src/effects/Sk1DPathEffect.cpp b/src/effects/Sk1DPathEffect.cpp
index 47824fd0f2eac09c0ef8079d42b1ea6cf1fc8cf0..83f684e2ca2bc29b901d1434a2062e37bc16f5ca 100644
--- a/src/effects/Sk1DPathEffect.cpp
+++ b/src/effects/Sk1DPathEffect.cpp
@@ -147,22 +147,6 @@ static void morphpath(SkPath* dst, const SkPath& src, SkPathMeasure& meas,
     }
 }
 
-#ifdef SK_SUPPORT_LEGACY_DEEPFLATTENING
-SkPath1DPathEffect::SkPath1DPathEffect(SkReadBuffer& buffer) {
-    fAdvance = buffer.readScalar();
-    if (fAdvance > 0) {
-        buffer.readPath(&fPath);
-        fInitialOffset = buffer.readScalar();
-        fStyle = (Style) buffer.readUInt();
-    } else {
-        SkDEBUGF(("SkPath1DPathEffect can't use advance <= 0\n"));
-        // Make Coverity happy.
-        fInitialOffset = 0;
-        fStyle = kStyleCount;
-    }
-}
-#endif
-
 SkScalar SkPath1DPathEffect::begin(SkScalar contourLength) const {
     return fInitialOffset;
 }