* Removed -Wno-unused from all KernelMergeObjects in kernel Jamfiles.

* Fixed most of the warnings resulting from that by removing actually not used
  variables or moving declaration into the #IF. Left unused functions there
  though, as I wouldn't know if they are supposed to be used again.
* Fixed two statements with no effect (clamping to MAX_ANCILLARY_DATA_LEN in
  socket.cpp and unsetting fCounterSem in MessagingService.cpp).
* Some style cleanups.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26253 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/system/kernel/debug/user_debugger.cpp

@@ -2214,7 +2214,6 @@ void
 _user_debugger(const char *userMessage)
 {
 	// install the default debugger, if there is none yet
-	struct thread *thread = thread_get_current_thread();
 	port_id nubPort;
 	status_t error = ensure_debugger_installed(B_CURRENT_TEAM, &nubPort);
 	if (error != B_OK) {