Don't use TEMP_FAILURE_RETRY on close in vold.

Bug: http://b/20501816
Change-Id: Ieecce9304539c250ed1728252b8c2c09d29afd7f
diff --git a/Utils.cpp b/Utils.cpp
index f45907a..0b8ccfd 100644
--- a/Utils.cpp
+++ b/Utils.cpp
@@ -328,7 +328,7 @@
         out.append(buf, n);
         bytes -= n;
     }
-    TEMP_FAILURE_RETRY(close(fd));
+    close(fd);
 
     if (bytes == 0) {
         return OK;