Remove an invalid assert that is really just asserting when the scheduler emits

a suboptimal schedule.

llvm-svn: 140643

llvm/lib/CodeGen/ScoreboardHazardRecognizer.cpp

@@ -213,7 +213,6 @@ void ScoreboardHazardRecognizer::EmitInstruction(SUnit *SU) {
         freeUnits = freeUnit & (freeUnit - 1);
       } while (freeUnits);
 
-      assert(freeUnit && "No function unit available!");
       if (IS->getReservationKind() == InstrStage::Required)
         RequiredScoreboard[cycle + i] |= freeUnit;
       else