* 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/debug.cpp

@@ -87,7 +87,6 @@ static const uint32 kMaxDebuggerModules = sizeof(sDebuggerModules)
 #define HISTORY_SIZE 16
 
 static char sLineBuffer[HISTORY_SIZE][LINE_BUFFER_SIZE] = { "", };
-static char sParseLine[LINE_BUFFER_SIZE];
 static int32 sCurrentLine = 0;
 
 #define distance(a, b) ((a) < (b) ? (b) - (a) : (a) - (b))
@@ -880,8 +879,6 @@ syslog_init(struct kernel_args *args)
 	syslog_write(revisionBuffer, length);
 	return B_OK;
 
-err3:
-	free(sSyslogBuffer);
 err2:
 	free(sSyslogMessage);
 err1: