Cycles: Move HIP-RT out of experimental flag

The full regression suit passes, so there is no real background towards
considering it experimental.

It is still stays disabled by default for Blender 4.4.

Pull Request: https://projects.blender.org/blender/blender/pulls/135760

intern/cycles/blender/addon/properties.py

@@ -1583,9 +1583,8 @@ class CyclesPreferences(bpy.types.AddonPreferences):
     )
 
     use_hiprt: BoolProperty(
-        name="HIP RT (Experimental)",
-        description="HIP RT enables AMD hardware ray tracing on RDNA2 and above. "
-                    "This feature is experimental and some scenes may render incorrectly",
+        name="HIP RT",
+        description="HIP RT enables AMD hardware ray tracing on RDNA2 and above",
         default=False,
     )