Update iacscan.md
No longer "new".
# IaC Scan
-IaC ("Infrastructure as Code") Scan is a new type of scanning supported by [solution_name].
+IaC ("Infrastructure as Code") Scan is a type of scanning supported by [solution_name].
To configure IaC Scan, see [IaC Scan properties](../properties/configuration/iac-scan.md).
