remove dead variable, patch by Nathan Howell!

llvm-svn: 98704

llvm/include/llvm/Target/TargetOptions.h

@@ -144,11 +144,6 @@ namespace llvm {
   /// wth earlier copy coalescing.
   extern bool StrongPHIElim;
 
-  /// DisableScheduling - This flag disables instruction scheduling. In
-  /// particular, it assigns an ordering to the SDNodes, which the scheduler
-  /// uses instead of its normal heuristics to perform scheduling.
-  extern bool DisableScheduling;
-
 } // End llvm namespace
 
 #endif