sdbus++: clean up TODO

Residual TODO comment posted a question on if static_cast can
throw.  It cannot, so remove comment.

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: Ief616537723c6e66090a9b20a227ce79677cee51
diff --git a/tools/sdbusplus/templates/property.prototype.hpp.mako b/tools/sdbusplus/templates/property.prototype.hpp.mako
index c1aa4ac..425dd63 100644
--- a/tools/sdbusplus/templates/property.prototype.hpp.mako
+++ b/tools/sdbusplus/templates/property.prototype.hpp.mako
@@ -32,7 +32,6 @@
         const char* /*property*/, sd_bus_message* reply, void* context,
         sd_bus_error* error)
 {
-    // TODO(venture): Can this except? I wouldn't think so.
     auto o = static_cast<${classname}*>(context);
 
     try