Remove the GetSequenceMutex timeout that isn't being used in the GDB remote plug-in. 

Also fixed the ProcessLinux, ProcessPOSIX and ProcessFreeBSD to have the correct UpdateThreadList() prototype.

llvm-svn: 154603
diff --git a/lldb/source/Plugins/Process/FreeBSD/ProcessFreeBSD.h b/lldb/source/Plugins/Process/FreeBSD/ProcessFreeBSD.h
index 304fa4c..74996f1 100644
--- a/lldb/source/Plugins/Process/FreeBSD/ProcessFreeBSD.h
+++ b/lldb/source/Plugins/Process/FreeBSD/ProcessFreeBSD.h
@@ -54,7 +54,7 @@
     ProcessFreeBSD(lldb_private::Target& target,
                    lldb_private::Listener &listener);
 
-    virtual uint32_t
+    virtual bool
     UpdateThreadList(lldb_private::ThreadList &old_thread_list, lldb_private::ThreadList &new_thread_list);
 
     //------------------------------------------------------------------