Refs #5926. Leif made fortify do the right thing, so unding r54709. Leif...

Refs #5926.  Leif made fortify do the right thing, so unding r54709.  Leif says: The RelWithDebInfo target uses -O1 -g, see lines 119 and 120.

git-svn-id: file:///svn/toku/tokudb@54726 c7de825b-a66e-492c-adef-691d508d4ae1

cmake_modules/TokuSetupCompiler.cmake

@@ -25,9 +25,7 @@ endif ()
 ## add TOKU_PTHREAD_DEBUG for debug builds
 set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS_DEBUG TOKU_PTHREAD_DEBUG=1)
 set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS_RELWITHDEBINFO TOKU_PTHREAD_DEBUG=1)
-## fortify doesn't work with -O0, so we are deprecating it for now.  Sometime we should turn on 
-## fortify for -O1 builds, but we don't want it on the release builds.
-## #set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS_RELWITHDEBINFO _FORTIFY_SOURCE=2)
+set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS_RELWITHDEBINFO _FORTIFY_SOURCE=2)
 
 ## coverage
 option(USE_GCOV "Use gcov for test coverage." OFF)