Remove confusing comment

BUILD/choose_configure.sh

@@ -2,11 +2,6 @@
 # Choose whether to use autoconf created configure
 # of perl script that calls cmake.
 
-# # This is a temporary hack to build 5.5.3-m3:
-# # The "cmake" way still shows issues in our release build environment.
-# # Block it temporarily, but in a way that can easily be undone.
-# HAVE_CMAKE=no
-
 # Ensure cmake and perl are there
 cmake -P cmake/check_minimal_version.cmake >/dev/null 2>&1 || HAVE_CMAKE=no
 perl --version >/dev/null 2>&1 || HAVE_CMAKE=no