Removed old resource locking system

https://codereview.appspot.com/6488098/



git-svn-id: http://skia.googlecode.com/svn/trunk@5453 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/gpu/gl/GrGpuGL.cpp b/src/gpu/gl/GrGpuGL.cpp
index 887ed76..845d1f8 100644
--- a/src/gpu/gl/GrGpuGL.cpp
+++ b/src/gpu/gl/GrGpuGL.cpp
@@ -1110,7 +1110,7 @@
                                                   samples, format)));
             if (this->attachStencilBufferToRenderTarget(sb, rt)) {
                 fLastSuccessfulStencilFmtIdx = sIdx;
-                sb->transferToCacheAndLock();
+                sb->transferToCache();
                 rt->setStencilBuffer(sb);
                 return true;
            }