rubinius/rubinius — pull request #2924 by southerngs (2014-02-06 22:34:18+00:00)
Title: Remove unused -Xthread.debug option

Debugging information for threads is set at compile time
not runtime. This patch removes the unused -Xthread.debug option
along with two redundant messages that were already controlled
by the cDebugThreading variable set at compile time.