See the picture above. In the Applications lens of the Dash, you have the "Installed" field, and the "Dash plugins" field. I never use this field at all, but by default it appears expanded, not the "Installed" field. How can I removed the "Dash plugins" field from the Applications lens entirely, so that it only shows the "Installed" apps?
(I already used Unity Tweak Tool to remove the "recent items" and "More suggestions", etc.)
(Asked while using Ubuntu 15.10 x64 with Unity 7.3.2)