Remove llfasttimer.h from linden_common.h, not necessary and adds 15K lines of...

Remove llfasttimer.h from linden_common.h, not necessary and adds 15K lines of header code to every library .cpp file.

indra/llcommon/linden_common.h

@@ -87,7 +87,8 @@
 #include "lldefs.h"
 #include "llerror.h"
 #include "llextendedstatus.h"
-#include "llfasttimer.h"
+// Don't do this, adds 15K lines of header code to every library file.
+//#include "llfasttimer.h"
 #include "llfile.h"
 #include "llformat.h"