kern: Minor style cleanup in the base SkipFuncEvent class.

Change-Id: I0f4efb825b0611d3bab5a429fd36d28a178f86b9
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/24110
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Bobby R. Bruce <bbruce@ucdavis.edu>
Maintainer: Gabe Black <gabeblack@google.com>

src/kern/system_events.cc

@@ -28,15 +28,12 @@
 
 #include "kern/system_events.hh"
 
-#include "arch/isa_traits.hh"
 #include "arch/utility.hh"
 #include "base/trace.hh"
 #include "config/the_isa.hh"
 #include "cpu/thread_context.hh"
 #include "debug/PCEvent.hh"
 
-using namespace TheISA;
-
 void
 SkipFuncEvent::process(ThreadContext *tc)
 {

src/kern/system_events.hh

@@ -37,7 +37,7 @@ class SkipFuncEvent : public PCEvent
     SkipFuncEvent(PCEventScope *s, const std::string &desc, Addr addr)
         : PCEvent(s, desc, addr)
     {}
-    virtual void process(ThreadContext *tc);
+    void process(ThreadContext *tc) override;
 };
 
 #endif // __SYSTEM_EVENTS_HH__