Fix error when editing layer from review page
Fix error when editing layer from review page

The layer_review URL does not take a branch argument, so we can't send
one or it'll fail.

Signed-off-by: Paul Eggleton <737d4dae46a541673d7bf4e0d5b32714b16528d8@linux.intel.com>

bartosh/layerindex-web,bartosh/layerindex-web,bartosh/layerindex-web