test-renderers: Delete rend3 dependency and stub out gltf-render.
#934
| Job | Run time |
|---|---|
| 1m 11s | |
| 24s | |
| 39s | |
| 1m 27s | |
| 1m 10s | |
| 1m 35s | |
| 23s | |
| 1m 5s | |
| 1m 11s | |
| 6s | |
| 1m 8s | |
| 57s | |
| 1m 3s | |
| 38s | |
| 1s | |
| 1s | |
| 1s | |
| 1s | |
| 13m 1s |