Remove generator for system/constants.h which is now auto-built at compile time

hphp/tools/generated_files.sh

@@ -26,7 +26,6 @@ HPHP_TOOLS=$HPHP_HOME/hphp/tools/
 
 if [ "$1" = "help" ]; then
   echo "$0 systemlib  - Build bin/systemlib.php"
-  echo "$0 constants  - Build hphp/system/constants.h"
   echo "$0 lexer      - Regenerate the lexer"
   echo "$0 parser     - Regenerate the parser"
   echo "$0 license    - Add license headers to all files"
@@ -43,12 +42,6 @@ if [ "$1" = "systemlib" -o "$1" = "all" ]; then
   check_err $? "Failed generating bin/systemlib.php"
 fi
 
-if [ "$1" = "constants" -o "$1" = "all" ]; then
-  cd $HPHP_HOME
-  [ $VERBOSE -eq 1 ] && echo "Generating hphp/system/constants.h"
-  $HHVM hphp/idl/class_map.php hphp/system/constants.h hphp/system/globals/constdef.json
-fi
-
 if [ "$1" = "lexer" -o "$1" = "all" ]; then
   cd $HPHP_HOME/hphp/util/parser
   [ $VERBOSE -eq 1 ] && echo "Generating lexer"