ARM: Replace arm::SetCc with vixl32::FlagsUpdate.

And delete obsolete test header file.

Test: Rely on TreeHugger.
Change-Id: I15858b8462198098f21956685a2ad77908b8a186
diff --git a/compiler/optimizing/scheduler_arm.cc b/compiler/optimizing/scheduler_arm.cc
index b3c8f10..8dcadaa 100644
--- a/compiler/optimizing/scheduler_arm.cc
+++ b/compiler/optimizing/scheduler_arm.cc
@@ -330,10 +330,12 @@
         }
       } else if (c == kCondLE || c == kCondGT) {
         if (value < std::numeric_limits<int64_t>::max() &&
-            !codegen_->GetAssembler()->ShifterOperandCanHold(SBC, High32Bits(value + 1), kCcSet)) {
+            !codegen_->GetAssembler()->ShifterOperandCanHold(
+                SBC, High32Bits(value + 1), vixl32::FlagsUpdate::SetFlags)) {
           return false;
         }
-      } else if (!codegen_->GetAssembler()->ShifterOperandCanHold(SBC, High32Bits(value), kCcSet)) {
+      } else if (!codegen_->GetAssembler()->ShifterOperandCanHold(
+                      SBC, High32Bits(value), vixl32::FlagsUpdate::SetFlags)) {
         return false;
       }
     }