[Site] Simplifying deploy - all done by platform.sh automatically

Author: weaverryan

ux.symfony.com/.platform.app.yaml

@@ -46,15 +46,9 @@ hooks:
         set -x -e
 
         curl -s https://get.symfony.com/cloud/configurator | (>&2 bash)
-        # temporary until symfony-build runs importmap:install
-        NO_ASSET_MAPPER=1
 
         (>&2 symfony-build)
 
-        php bin/console importmap:install
-        php bin/console sass:build
-        php bin/console asset-map:compile
-
     deploy: |
         set -x -e