sim-se: remove unused parameter

The init function which processes invoke on their page tables
has a thread context pointer parameter. The parameter is not
used by the code so remove it.

Change-Id: Ic4766fbc105d81c1c9ee4b5c0f428497dff2ab30
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/19948
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Jason Lowe-Power <jason@lowepower.com>
Tested-by: kokoro <noreply+kokoro@google.com>

src/sim/process.cc

@@ -282,7 +282,7 @@ Process::initState()
     // mark this context as active so it will start ticking.
     tc->activate();
 
-    pTable->initState(tc);
+    pTable->initState();
 }
 
 DrainState