Remove redundant debug flag.
dumpsys result https://paste.googleplex.com/4984316764356608

Bug: 233818658
Test: manual
Change-Id: Ib89d765d2861cd6b9c61bef78ac15338581d97bb
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 5306602..87cb6bf 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -357,9 +357,6 @@
     // debugging stuff...
     char value[PROPERTY_VALUE_MAX];
 
-    property_get("ro.bq.gpu_to_cpu_unsupported", value, "0");
-    mGpuToCpuSupported = !atoi(value);
-
     property_get("ro.build.type", value, "user");
     mIsUserBuild = strcmp(value, "user") == 0;
 
@@ -5181,10 +5178,7 @@
         StringAppendF(&result, "  orientation=%s, isPoweredOn=%d\n",
                       toCString(display->getOrientation()), display->isPoweredOn());
     }
-    StringAppendF(&result,
-                  "  transaction-flags         : %08x\n"
-                  "  gpu_to_cpu_unsupported    : %d\n",
-                  mTransactionFlags.load(), !mGpuToCpuSupported);
+    StringAppendF(&result, "  transaction-flags         : %08x\n", mTransactionFlags.load());
 
     if (const auto display = getDefaultDisplayDeviceLocked()) {
         std::string fps, xDpi, yDpi;
diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index d290762..4b7a32f 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -1109,7 +1109,6 @@
 
     // constant members (no synchronization needed for access)
     const nsecs_t mBootTime = systemTime();
-    bool mGpuToCpuSupported = false;
     bool mIsUserBuild = true;
 
     // Can only accessed from the main thread, these members