Move url for showing submission to a more proper location

Author: Redande

app/controllers/api/v8/core/exercises/submissions_controller.rb

@@ -108,11 +108,8 @@ def create
 
             if !errormsg
               render json: { submission_url: api_v8_core_submission_url(@submission),
-                             paste_url: if @submission.paste_key
-                                          paste_url(@submission.paste_key)
-                                        else
-                                          ''
-                                        end }
+                             paste_url: @submission.paste_key ? paste_url(@submission.paste_key) : '',
+                             show_submission_url: submission_url(@submission) }
             else
               render json: { error: errormsg }
             end

app/controllers/api/v8/core/submissions_controller.rb

@@ -46,8 +46,7 @@ def show
             end
             return render json: {
               status: :processing,
-              sandbox_status: sandbox_status,
-              submission_url: view_context.submission_url(@submission)
+              sandbox_status: sandbox_status
             }
           end
           unauthorize_guest!
@@ -69,7 +68,6 @@ def show
               validations: @submission.validations,
               valgrind: @submission.valgrind,
               solution_url: @exercise.solution.visible_to?(current_user) ? view_context.exercise_solution_url(@exercise) : nil,
-              submission_url: view_context.submission_url(@submission),
               submitted_at: @submission.created_at,
               processing_time: @submission.processing_time,
               reviewed: @submission.reviewed?,