COMPMID-2939 Keep benchmark_examples and validate_examples

Remove FIXME comments in Sconscripts referring to the removal of
benchmark_examples and validate_examples, as we are keeping them in
releases from now on.

This is a 19.11 release activity ticket but the patch needs to be
backported to master because this applies to all future releases.

Signed-off-by: SiCong Li <sicong.li@arm.com>
Change-Id: Ifac73ebeaf12c93d6309f73bb011bd275e1fe503
Reviewed-on: https://review.mlplatform.org/c/2334
Reviewed-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
diff --git a/tests/validate_examples/RunExample.cpp b/tests/validate_examples/RunExample.cpp
index 41ed851..f00460a 100644
--- a/tests/validate_examples/RunExample.cpp
+++ b/tests/validate_examples/RunExample.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2018 ARM Limited.
+ * Copyright (c) 2018-2019 ARM Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -22,7 +22,6 @@
  * SOFTWARE.
  */
 #include "utils/Utils.h"
-//FIXME / INTERNAL_ONLY: This file should not be released!
 
 #define BENCHMARK_EXAMPLES
 #include "utils/Utils.cpp"