Remove support for 'packageRoots' in DAS.

Bug: https://github.com/dart-lang/sdk/issues/41197
Change-Id: I61929a5853b4e353e3a758fe5088f2ff2c1fda2d
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/149100
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Commit-Queue: Konstantin Shcheglov <scheglov@google.com>

https://dart.googlesource.com/sdk/+/a56368926e9b2525c825db6f6e4dae288f9316fb
1 file changed
tree: 919c0aa847a589ba570865c069ff62840c1c360a
  1. commits.json