Remove Samples.txt: discover samples dynamically via ListAllSamples

- ListAllSamples.ps1: output sorted sample names to stdout instead of
  writing Samples.txt. The file output is replaced with Write-Output
  so callers can capture results via pipeline or command substitution.
- Build-Samples.ps1: remove SampleListPath parameter. Default discovery
  now calls ListAllSamples.ps1 at runtime and consumes its stdout.
  Explicit -Samples array still works and is sorted alphabetically.
  Both paths guarantee a consistent alphabetical sample ordering.
- Samples.txt: deleted. No longer needed as a pre-generated artifact.

WDS_TestPass.cs is unaffected - it only passes -LogFilesDirectory and
-InfOptions, neither of which changed.

Co-authored-by: Copilot <[email protected]>

0 files changed, 0 insertions, 0 deletions