Selection Highlight cannot be disabled for Skeletal Meshes

Selection highlight cannot be disabled for Skeletal Meshes. They will always have the outline selection and some tinted selection over their faces. Static Meshes do not exhibit this behavior.

This is also a regression from behavior in 4.13 where it functioned the same as static meshes. 4.14 - 4.16 exhibit this behavior. I've also noticed that there are a lot of issues with selection highlight where this changes between releases. This was originally reporte din 4.14's release but when checking the Main 4.15 at the time the issue was not present, but has since returned.

Tested with:
Working - 4.13.2 Binary CL-3172292
Broken: 4.14.3 Binary CL-3249277
Broken: 4.15 Automated Build CL-3289346
Broken: 4.16 Dev-Main CL-3282993

Attached are two gif files that show the difference.

• Left Cube is a Static Mesh
• Right Cube is a Skeletal Mesh

1. Add any Skeletal Mesh to the scene or a Blueprint
2. Select it

Result: Selection highlight is always on for the faces of the mesh.

Selection highlight always on

Selection highlight always on