Remove verbose flag from Dali Index Creator
Signed-off-by: smajumdar <smajumdar@nvidia.com>

# What does this PR do ?

Fix an issue in Dali Index Creator causing a crash.

**Collection**: [ASR]

# Changelog 
- Remove verbose=False arg from DALI Index Creator.

**PR Type**:
- [ ] New Feature
- [x] Bugfix
- [ ] Documentation

