Fixup request_tower_configuration.sh

Drop retry-related commandline argument, since we don't use that any more.

Ensure -e is allowed.

tools/scripts/request_tower_configuration.sh

@@ -20,16 +20,14 @@ OPTIONS:
    -c      Host config key (required)
    -t      Job template ID (required)
    -e      Extra variables
-   -s      Number of seconds between retries (default: ${NUM_SECONDS})
 EOF
 }
 
 # Initialize variables
 INSECURE=""
-NUM_SECONDS=60
 
 # Parse arguments
-while getopts “hks:c:t:s:” OPTION
+while getopts “hks:c:t:s:e:” OPTION
 do
      case ${OPTION} in
          h)
@@ -51,9 +49,6 @@ do
          e)
              EXTRA_VARS=${OPTARG}
              ;;
-         2)
-             NUM_SECONDS=${OPTARG}
-             ;;
          ?)
              usage
              exit