Revert "SurfaceTexture: inherit from ConsumerBase"

This reverts commit ed059a8d754770c3cf28b78dba30f7a6ba475dbe

Change-Id: I72542c2595771a40c2c88251e0d6eb54e305b99b
diff --git a/libs/gui/ConsumerBase.cpp b/libs/gui/ConsumerBase.cpp
index 17bbfd1..af19ac0 100644
--- a/libs/gui/ConsumerBase.cpp
+++ b/libs/gui/ConsumerBase.cpp
@@ -53,8 +53,7 @@
 }
 
 ConsumerBase::ConsumerBase(const sp<BufferQueue>& bufferQueue) :
-        mAbandoned(false),
-        mBufferQueue(bufferQueue) {
+	mBufferQueue(bufferQueue) {
     // Choose a name using the PID and a process-unique ID.
     mName = String8::format("unnamed-%d-%d", getpid(), createProcessUniqueId());