Remove Picture deletion listeners.

src/utils/SkPictureUtils.cpp

Index: src/utils/SkPictureUtils.cpp
diff --git a/src/utils/SkPictureUtils.cpp b/src/utils/SkPictureUtils.cpp
index 73c61bb042871ca21907d396a8ffd9b48a5518cb..7f9409adacee65a3d5f574e9437a2a3757385fb5 100644
--- a/src/utils/SkPictureUtils.cpp
+++ b/src/utils/SkPictureUtils.cpp
@@ -232,10 +232,6 @@ size_t SkPictureUtils::ApproximateBytesUsed(const SkPicture* pict) {
     if (pict->fBBH.get()) {
         byteCount += pict->fBBH->bytesUsed();
     }
-    byteCount +=
-        pict->fDeletionListeners.reserved() * sizeof(SkPicture::DeletionListener*) +
-        pict->fDeletionListeners.count() * sizeof(SkPicture::DeletionListener);
-
     MeasureRecords visitor;
     for (unsigned curOp = 0; curOp < pict->fRecord->count(); curOp++) {
         byteCount += pict->fRecord->visit<size_t>(curOp, visitor);