Install node modules in production mode and delete them afterwards to…

… free out space

Signed-off-by: William Desportes <williamdes@wdes.fr>

demo/bin/pma-demo-update

@@ -88,7 +88,9 @@ for REPONAME in $REPOS ; do
     if [ -f package.json ] ; then
         # We still redirect output to /dev/null because even with the --silent flag, yarn still gives sass output such as
         # $ sass themes/pmahomme/scss:themes/pmahomme/css themes/original/scss:themes/original/css themes/metro/scss:themes/metro/css
-        yarn install --frozen-lockfile --non-interactive --silent > /dev/null
+        yarn install --production --frozen-lockfile --non-interactive --silent > /dev/null
+        # They waste too much space, clear them out
+        rm -rf ./node_modules
     fi
 
     # Link themes