Merge pull request #1342 from GregP/optimize_planning_reset_flash_msg…

…_display

Delete duplicate flash message display in Optimize Planning page
(cherry picked from commit c922477)

https://bugzilla.redhat.com/show_bug.cgi?id=1454443

app/controllers/miq_capacity_controller.rb

@@ -564,6 +564,7 @@ def planning_build_options
         page << javascript_pf_toolbar_reload('view_tb', v_tb) if v_tb.present?
         page << javascript_for_miq_button_visibility(session[:changed])
         page.replace("planning_options_div", :partial => "planning_options")
+        @flash_array = nil       # Make sure to reset flash message after initial display
         page.replace_html("main_div", :partial => "planning_tabs")
       end
     end