DEV: Replace legacy discourse-setup with Docker-based wizard (#1043)

The new Docker-based setup wizard (formerly discourse-setup-ruby) is now
the sole setup path. The old bash discourse-setup and its associated
tests are removed as they are no longer needed.

Author: xfalcox

discourse-setup

@@ -131,10 +131,7 @@ run_wizard() {
 
     cd "$INSTALL_DIR"
 
-    if [[ -x "./discourse-setup-ruby" ]]; then
-        exec ./discourse-setup-ruby "$@"
-    elif [[ -x "./discourse-setup" ]]; then
-        log_warn "Ruby setup wizard not available, falling back to standard setup"
+    if [[ -x "./discourse-setup" ]]; then
         exec ./discourse-setup "$@"
     else
         log_error "Setup script not found in $INSTALL_DIR"

discourse-setup-ruby

@@ -31,7 +31,7 @@ _launcher ()
 _discourse_setup()
 {
   local cur
-  switches='--debug --skip-rebuild --two-container --skip-connection-test'
+  switches='--debug --skip-rebuild --skip-connection-test'
 
   cur=${COMP_WORDS[COMP_CWORD]}
   COMPREPLY=( $(compgen -W "$switches" -- $cur ) )