remove/deprecate SkBitmap::getTexture, as it now always returns false

src/core/SkCanvas.cpp

Index: src/core/SkCanvas.cpp
diff --git a/src/core/SkCanvas.cpp b/src/core/SkCanvas.cpp
index 2cfe8ae2da8b92e65a12b177eb7ef27dea7268fc..42d0382397d55c4b26b0d14558b13898e0bbb068 100644
--- a/src/core/SkCanvas.cpp
+++ b/src/core/SkCanvas.cpp
@@ -856,7 +856,7 @@ SkBaseDevice* SkCanvas::getTopDevice(bool updateMatrixClip) const {
 }
 
 bool SkCanvas::readPixels(SkBitmap* bitmap, int x, int y) {
-    if (kUnknown_SkColorType == bitmap->colorType() || bitmap->getTexture()) {
+    if (kUnknown_SkColorType == bitmap->colorType()) {
         return false;
     }
 
@@ -918,10 +918,6 @@ bool SkCanvas::readPixels(const SkImageInfo& dstInfo, void* dstP, size_t rowByte
 }
 
 bool SkCanvas::writePixels(const SkBitmap& bitmap, int x, int y) {
-    if (bitmap.getTexture()) {
-        return false;
-    }
-
     SkAutoPixmapUnlock unlocker;
     if (bitmap.requestLock(&unlocker)) {
         const SkPixmap& pm = unlocker.pixmap();