Properly load Pods_Templates

Did this ever work?  Maybe I'm missing something here
Ensure the files are actually included

Not exactly sure why this was only showing its face with xcache on and working (?) normally without
Remove class check, the next file included does the same check

This allows Pods_Templates to work if pods-frontier is also loaded
Remove check of class loaded

Could wrap the whole class loading block in an else if necessary, but I don't think it is
Merge pull request #2437 from jamesgol/templatesload

Properly load Pods_Templates