Bug 30194: (follow-up) Remove reference to swagger-v2-schema

This file is now bundled directly an no longer needs to be refered to
separately.

Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>

Koha/REST/Plugin/PluginRoutes.pm

@@ -49,8 +49,6 @@ sub register {
 
     if ( C4::Context->config("enable_plugins") )
     {
-        $self->{'swagger-v2-schema'} = $app->home->rel_file("api/swagger-v2-schema.json");
-
         # plugin needs to define a namespace
         @plugins = Koha::Plugins->new()->GetPlugins(
             {
@@ -79,7 +77,7 @@ sub inject_routes {
     return try {
 
         my $backup_spec = merge_spec( clone($spec), $plugin );
-        if ( $self->spec_ok( $backup_spec, $validate ) ) {
+        if ( $self->spec_ok( $backup_spec ) ) {
             $spec = merge_spec( $spec, $plugin );
         }
         else {