Remove license for XSVG


The relevant code moved to Qt GUI, together with this attribution.

Amends 3601e914022daf4d814c70b94c9de72f6bc07d85

Pick-to: 6.12
Task-number: QTBUG-149125
Change-Id: I6edfe78b7f6a755430eb8793385a73d1751abfbb
Reviewed-by: Hatem ElKharashy <hatem.elkharashy@qt.io>
commit4befb778b33b5745e1343e8c860063f8246c3000
parentadaa07943fe45b4c30576e592a27fe0304e44726
authorRobert Löhning <robert.loehning@qt.io>
committerRobert Löhning <robert.loehning@qt.io>
commit timeFri, 21 Aug 2026 08:54:32 +0000