syscall_emul: [patch 5/22] remove LiveProcess class and use Process instead

The EIOProcess class was removed recently and it was the only other class
which derived from Process. Since every Process invocation is also a
LiveProcess invocation, it makes sense to simplify the organization by
combining the fields from LiveProcess into Process.

tests/quick/se/00.hello/test.py

@@ -26,7 +26,7 @@
 #
 # Authors: Steve Reinhardt
 
-root.system.cpu[0].workload = LiveProcess(cmd = 'hello',
-                                          executable = binpath('hello'))
+root.system.cpu[0].workload = Process(cmd = 'hello',
+                                      executable = binpath('hello'))
 if root.system.cpu[0].checker != NULL:
     root.system.cpu[0].checker.workload = root.system.cpu[0].workload