[Driver][Mips] MIPS ABI names "32" and "64" used as arguments of the "-mabi"
command line option only. Internally we convert them to the "o32" and "n64"
respectively. So we do not need to refer them anywhere after that conversion.

No functional changes.

llvm-svn: 212096
diff --git a/clang/lib/Driver/Tools.cpp b/clang/lib/Driver/Tools.cpp
index 093c936..c721168 100644
--- a/clang/lib/Driver/Tools.cpp
+++ b/clang/lib/Driver/Tools.cpp
@@ -950,8 +950,8 @@
   if (!ABIName.empty()) {
     // Deduce CPU name from ABI name.
     CPUName = llvm::StringSwitch<const char *>(ABIName)
-      .Cases("32", "o32", "eabi", DefMips32CPU)
-      .Cases("n32", "n64", "64", DefMips64CPU)
+      .Cases("o32", "eabi", DefMips32CPU)
+      .Cases("n32", "n64", DefMips64CPU)
       .Default("");
   }
   else if (!CPUName.empty()) {