Remove the feature link from the trash and spam pages

Applies to https://github.com/GigaOM/gigaom/issues/5248

Using the global set in `bSocial_Comments_Feedback_Table` to filter for the trash and spam pages and bail before outputting the feature link.
#### Screen Shots
##### Trash
![screen shot 2014-09-17 at 10 30 34 am](https://cloud.githubusercontent.com/assets/929375/4305279/0517ecd2-3e78-11e4-95dc-447f1ca0e3cf.png)