Revert[4] "guard old apis for querying byte-size of a bitmap/imageinfo/pixmap"

This reverts commit 5a2e50edc51006ce91366e177a9d21a16775d7fd.

Bug: skia:
Change-Id: I8d28b5c07d90130e5a1653923740eaf189ecb954
Reviewed-on: https://skia-review.googlesource.com/53900
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
diff --git a/src/codec/SkSampler.cpp b/src/codec/SkSampler.cpp
index c7d9a3a..d18410b 100644
--- a/src/codec/SkSampler.cpp
+++ b/src/codec/SkSampler.cpp
@@ -14,8 +14,8 @@
         uint64_t colorOrIndex, SkCodec::ZeroInitialized zeroInit) {
     SkASSERT(dst != nullptr);
 
-    // Calculate bytes to fill.  We use getSafeSize since the last row may not be padded.
-    const size_t bytesToFill = info.getSafeSize(rowBytes);
+    // Calculate bytes to fill.
+    const size_t bytesToFill = info.computeByteSize(rowBytes);
     const int width = info.width();
     const int numRows = info.height();