Camera3: Power: Properly shut down unused thread.

Bug: 9466221
Change-Id: I9ed0740561b2e04954eebc1b8aec89cfab40a3a0
diff --git a/services/camera/libcameraservice/camera2/ZslProcessor3.cpp b/services/camera/libcameraservice/camera2/ZslProcessor3.cpp
index 2e06691..40c77df 100644
--- a/services/camera/libcameraservice/camera2/ZslProcessor3.cpp
+++ b/services/camera/libcameraservice/camera2/ZslProcessor3.cpp
@@ -329,8 +329,9 @@
 }
 
 bool ZslProcessor3::threadLoop() {
-    // TODO: remove dependency on thread
-    return true;
+    // TODO: remove dependency on thread. For now, shut thread down right
+    // away.
+    return false;
 }
 
 void ZslProcessor3::dumpZslQueue(int fd) const {