4265 remove INTERNAL_RELEASE_BUILD

@@ -246,12 +246,10 @@
 BUILD_DATE=$(LC_ALL=C date +%Y-%b-%d)
 BASEWSDIR=$(basename -- "${CODEMGR_WS}")
 DEV_CM="\"@(#)SunOS Internal Development: $LOGNAME $BUILD_DATE [$BASEWSDIR]\""
 export DEV_CM RELEASE_DATE POUND_SIGN
 
-export INTERNAL_RELEASE_BUILD=
-
 print 'Build type   is  \c'
 if ${flags.d} ; then
         print 'DEBUG'
         unset RELEASE_BUILD
         unset EXTRA_OPTIONS