Remove fixed width of tinyMce. By default width - 100%

Change-Id: I5f8a0da7af86716b1142180849c8e209c64e545d
diff --git a/app/soc/content/js/templates/modules/gci/conversation/base.js b/app/soc/content/js/templates/modules/gci/conversation/base.js
index 4fee275..8df5a6f 100644
--- a/app/soc/content/js/templates/modules/gci/conversation/base.js
+++ b/app/soc/content/js/templates/modules/gci/conversation/base.js
@@ -17,7 +17,6 @@
     // Set up TinyMCE reply editor
     tinyMceSettings = melange.tinyMceConfig(context.tinymce_inputs, "basic");
     tinyMceSettings["height"] = 240;
-    tinyMceSettings["width"] = 640;
     tinyMCE.init(tinyMceSettings);
 
     // Make tooltips visible only on hover