Camera2: Do not set auto-white-balance regions from metering regions.

Per API documentation, metering regions are only for AE, not also for AWB.

Bug: 7312720
Change-Id: I39bcf33e4c81e80022f45e8fca77ea6cf9ba115e
diff --git a/services/camera/libcameraservice/camera2/Parameters.cpp b/services/camera/libcameraservice/camera2/Parameters.cpp
index 05494d3..3c679da 100644
--- a/services/camera/libcameraservice/camera2/Parameters.cpp
+++ b/services/camera/libcameraservice/camera2/Parameters.cpp
@@ -1739,9 +1739,6 @@
             reqMeteringAreas, reqMeteringAreasSize);
     if (res != OK) return res;
 
-    res = request->update(ANDROID_CONTROL_AWB_REGIONS,
-            reqMeteringAreas, reqMeteringAreasSize);
-    if (res != OK) return res;
     delete[] reqMeteringAreas;
 
     /* don't include jpeg thumbnail size - it's valid for