Remove unused date variables.

scripts/exregional_process_bufr.sh

@@ -53,19 +53,8 @@ with FV3 for the specified cycle.
 #
 #-----------------------------------------------------------------------
 #
-START_DATE=$(echo "${CDATE}" | sed 's/\([[:digit:]]\{2\}\)$/ \1/')
+START_DATE=$(echo "${PDY}${cyc}")
 YYYYMMDDHH=$(date +%Y%m%d%H -d "${START_DATE}")
-JJJ=$(date +%j -d "${START_DATE}")
-
-YYYY=${YYYYMMDDHH:0:4}
-MM=${YYYYMMDDHH:4:2}
-DD=${YYYYMMDDHH:6:2}
-HH=${YYYYMMDDHH:8:2}
-YYYYMMDD=${YYYYMMDDHH:0:8}
-
-YYJJJHH=$(date +"%y%j%H" -d "${START_DATE}")
-PREYYJJJHH=$(date +"%y%j%H" -d "${START_DATE} 1 hours ago")
-
 #
 #-----------------------------------------------------------------------
 #