NXD Make HTTP to be the default clone protocol

Both fetch and push are possible over https, which is selected by http if
gitlab was configured to use https in external url.

This way to reduce security vectors and possible ways to interact with gitlab
we use https only without ssh at all.

app/helpers/projects_helper.rb

@@ -209,7 +209,8 @@ module ProjectsHelper
   end
 
   def default_url_to_repo(project = @project)
-    if default_clone_protocol == "ssh"
+    # always HTTP:
+    if false    # default_clone_protocol == "ssh"
       project.ssh_url_to_repo
     else
       project.http_url_to_repo
@@ -217,8 +218,9 @@ module ProjectsHelper
   end
 
   def default_clone_protocol
-    if !current_user || current_user.require_ssh_key?
-      gitlab_config.protocol
+    # always HTTP:
+    if true     # !current_user || current_user.require_ssh_key?
+      "http"
     else
       "ssh"
     end