gralloc: Remove unnecessary log message.

CRs-Fixed: 2668943
Change-Id: I989b6e3d2e8a183b91ce9c41fc238d89b7f76912
diff --git a/gralloc/gr_buf_mgr.cpp b/gralloc/gr_buf_mgr.cpp
index 96a9463..0b62ba4 100644
--- a/gralloc/gr_buf_mgr.cpp
+++ b/gralloc/gr_buf_mgr.cpp
@@ -506,7 +506,6 @@
       }
       break;
     default:
-      ALOGE("Offset and size in bits unknown for format %d", format);
       break;
   }
 }