PPC: Remove default case from fully covered switch.

llvm-svn: 184758
diff --git a/llvm/lib/Target/PowerPC/InstPrinter/PPCInstPrinter.cpp b/llvm/lib/Target/PowerPC/InstPrinter/PPCInstPrinter.cpp
index 920cda9..eee1f45 100644
--- a/llvm/lib/Target/PowerPC/InstPrinter/PPCInstPrinter.cpp
+++ b/llvm/lib/Target/PowerPC/InstPrinter/PPCInstPrinter.cpp
@@ -130,9 +130,8 @@
     case PPC::PRED_NU:
       O << "nu";
       return;
-    default:
-      llvm_unreachable("Invalid predicate code");
     }
+    llvm_unreachable("Invalid predicate code");
   }
 
   if (StringRef(Modifier) == "pm") {
@@ -166,9 +165,8 @@
     case PPC::PRED_NU_PLUS:
       O << "+";
       return;
-    default:
-      llvm_unreachable("Invalid predicate code");
     }
+    llvm_unreachable("Invalid predicate code");
   }
   
   assert(StringRef(Modifier) == "reg" &&