[DevTools] Remove unnecessary checks for project types.
This moves us closer to separating users of file system projects from network ones,
and just makes code cleaner.
Eventual goal is to remove project types completely.
BUG=
670180
Committed:
https://crrev.com/1ac525d4bdbec3318eae77ded7a1ff83f52f1b5f
Cr-Commit-Position: refs/heads/master@{#435856}