ref(config): Remove legacy multistream backward compat flags

config.js

     // hideLoginButton: true,
 };
 
-// Temporary backwards compatibility with old mobile clients.
-config.flags = config.flags || {};
-config.flags.sourceNameSignaling = true;
-config.flags.sendMultipleVideoStreams = true;
-config.flags.receiveMultipleVideoStreams = true;
-
 // Set the default values for JaaS customers
 if (enableJaaS) {
     config.dialInNumbersUrl = 'https://conference-mapper.jitsi.net/v1/access/dids';

debian/jitsi-meet-web-config.postinst

             fi
         fi
 
-        # Fixes multi-stream flags to workaround problem with mobile joining a multi-stream call with multi-stream disabled
-        FIX_MSG="// Temporary backwards compatibility with old mobile clients."
-        if ! grep -q "^${FIX_MSG}" $JITSI_MEET_CONFIG; then
-            echo  $FIX_MSG >> $JITSI_MEET_CONFIG
-            echo "config.flags = config.flags || {};" >> $JITSI_MEET_CONFIG
-        fi
-        if ! grep -q "^config.flags.sourceNameSignaling*" $JITSI_MEET_CONFIG; then
-            echo "config.flags.sourceNameSignaling = true;" >> $JITSI_MEET_CONFIG
-        fi
-        if ! grep -q "^config.flags.sendMultipleVideoStreams*" $JITSI_MEET_CONFIG; then
-            echo "config.flags.sendMultipleVideoStreams = true;" >> $JITSI_MEET_CONFIG
-        fi
-        if ! grep -q "^config.flags.receiveMultipleVideoStreams*" $JITSI_MEET_CONFIG; then
-            echo "config.flags.receiveMultipleVideoStreams = true;" >> $JITSI_MEET_CONFIG
-        fi
-
         if [[ "$FORCE_OPENRESTY" = "true" ]]; then
             NGX_COMMON_CONF_PATH="/usr/local/openresty/nginx/conf/$JVB_HOSTNAME.conf"
             NGX_SVC_NAME=openresty