Merge pull request eclipse-omr#7692 from keithc-ca/undef

Remove useless #undef DWARF lines

Author: babsingh

include_core/omrcfg.h.in

@@ -224,14 +224,6 @@
  */
 #undef OMR_THR_YIELD_ALG
 
-/**
- * Dwarf
- */
-#undef HAVE_DWARF_H
-#undef HAVE_LIBDWARF_DWARF_H
-#undef HAVE_LIBDWARF_H
-#undef HAVE_LIBDWARF_LIBDWARF_H
-
 /**
  * Flag to enable integration of valgrind api.
  */