tracetool: Remove unused vcpu.py script

vcpu.py is pointless since commit 89aafcf2a7 ("trace:
remove code that depends on setting vcpu"), remote it.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Message-id: 20240606102631.78152-1-philmd@linaro.org
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

scripts/tracetool/__init__.py

@@ -306,13 +306,7 @@ class Event(object):
             fmt = [fmt_trans, fmt]
         args = Arguments.build(groups["args"])
 
-        event = Event(name, props, fmt, args, lineno, filename)
-
-        # add implicit arguments when using the 'vcpu' property
-        import tracetool.vcpu
-        event = tracetool.vcpu.transform_event(event)
-
-        return event
+        return Event(name, props, fmt, args, lineno, filename)
 
     def __repr__(self):
         """Evaluable string representation for this object."""