fix template markup

Author: ptesei

src/conf-img/tpl/default-picture-caption.tpl

@@ -3,9 +3,7 @@
     <img src="%%default_img%%" %%attributes%% />
 </noscript>
 <picture>
-    <!--[if IE 9]><video style="display: none"><![endif]-->
     %%sources%%
-    <!--[if IE 9]></video><![endif]-->
     <img %%srcgif%% %%attributes%%/>
-    <figcaption>%%caption%%</figcaption>
 </picture>
+<figcaption>%%caption%%</figcaption>

src/conf-img/tpl/default-picture.tpl

@@ -3,10 +3,6 @@
     <img src="%%default_img%%" %%attributes%% />
 </noscript>
 <picture>
-    <!--[if IE 9]><video style="display: none"><![endif]-->
-
     %%sources%%
-
-    <!--[if IE 9]></video><![endif]-->
     <img %%srcgif%% %%attributes%%/>
-</picture>
+</picture>