Remove notice of Cylc review deprecation and Cylc Review hack in wrapper script

Author: wxtim

cylc/flow/etc/cylc

@@ -78,7 +78,7 @@
 # for selection using CYLC_VERSION. e.g. ln -s cylc-8.0.1-1 cylc-next
 #
 # Legacy Cylc 7 and Rose 2019.01 versions can also be installed into environments
-# in the ROOT location. The legacy support for rose edit, rosie and cylc review
+# in the ROOT location. The legacy support for rose edit and rosie
 # requires cylc-7 and rose-2019.01 symlinks to be created to the preferred
 # environments.
 # e.g.    ln -s cylc-7.9.5 cylc-7
@@ -160,13 +160,6 @@ if [[ ${0##*/} =~ ^ros ]]; then
     fi
 fi
 
-# Legacy support for cylc review
-if [[ ${0##*/} == "cylc" && ${1:-} == "review" && \
-      ! ${CYLC_ENV_NAME:-} =~ ^cylc-7 ]]; then
-    # Cylc 8: Use Cylc 7 to run "review"
-    CYLC_HOME="${CYLC_HOME_ROOT}/cylc-7"
-fi
-
 if [[ ! -x "${CYLC_HOME}/bin/${0##*/}" ]]; then
     echo 1>&2 "ERROR: ${0##*/} not found in ${CYLC_HOME}"
     exit 1

cylc/flow/scripts/cylc.py

@@ -293,9 +293,6 @@ def get_version(long=False):
         'cylc set-outputs (cylc 8.0-8.2) has been replaced by cylc set',
     'restart':
         'cylc run & cylc restart have been replaced by cylc play',
-    'review':
-        'cylc review has been removed; the latest Cylc 7 version is forward'
-        ' compatible with Cylc 8.',
     'suite-state':
         'cylc suite-state has been replaced by cylc workflow-state',
     'run':