erp5_run_my_doc: remove font not present for reveal

bt5/erp5_run_my_doc/SkinTemplateItem/portal_skins/erp5_run_my_doc/reveal_theme_white.css.css

@@ -3,7 +3,7 @@
  *
  * By Hakim El Hattab, http://hakim.se
  */
-@import url(../../lib/font/source-sans-pro/source-sans-pro.css);
+/* @import url(../../lib/font/source-sans-pro/source-sans-pro.css); */
 section.has-dark-background, section.has-dark-background h1, section.has-dark-background h2, section.has-dark-background h3, section.has-dark-background h4, section.has-dark-background h5, section.has-dark-background h6 {
   color: #fff; }