Revert "enable ALLOW_DEQUEUE_CURRENT_BUFFER for tegra devices"

This reverts commit e7758be.

Seemed to cause failures un SurfaceTexture.

Bug: 5627450

Author: pixelflinger

libs/gui/Android.mk

@@ -32,10 +32,6 @@ LOCAL_SHARED_LIBRARIES := \
 
 LOCAL_MODULE:= libgui
 
-ifeq ($(TARGET_BOARD_PLATFORM), tegra)
-	LOCAL_CFLAGS += -DALLOW_DEQUEUE_CURRENT_BUFFER
-endif
-
 include $(BUILD_SHARED_LIBRARY)
 
 ifeq (,$(ONE_SHOT_MAKEFILE))

libs/gui/SurfaceTexture.cpp

@@ -36,12 +36,8 @@
 #include <utils/Log.h>
 #include <utils/String8.h>
 
-#ifdef ALLOW_DEQUEUE_CURRENT_BUFFER
-#define FLAG_ALLOW_DEQUEUE_CURRENT_BUFFER    true
-#warning "ALLOW_DEQUEUE_CURRENT_BUFFER enabled"
-#else
-#define FLAG_ALLOW_DEQUEUE_CURRENT_BUFFER    false
-#endif
+
+#define ALLOW_DEQUEUE_CURRENT_BUFFER    false
 
 // Macros for including the SurfaceTexture name in log messages
 #define ST_LOGV(x, ...) LOGV("[%s] "x, mName.string(), ##__VA_ARGS__)
@@ -327,7 +323,7 @@ status_t SurfaceTexture::dequeueBuffer(int *outBuf, uint32_t w, uint32_t h,
             LOGW_IF((state == BufferSlot::FREE) && (mCurrentTexture==i),
                     "dequeueBuffer: buffer %d is both FREE and current!", i);
 
-            if (FLAG_ALLOW_DEQUEUE_CURRENT_BUFFER) {
+            if (ALLOW_DEQUEUE_CURRENT_BUFFER) {
                 if (state == BufferSlot::FREE || i == mCurrentTexture) {
                     foundSync = i;
                     if (i != mCurrentTexture) {