[PATCH] Remove unnecessary variables.

[Ahmed Charles]

Hi dblaikie,

Found self-hosting clang-cl on windows. :)

http://llvm-reviews.chandlerc.com/D2957

Files:
  lib/Support/Windows/Process.inc

Index: lib/Support/Windows/Process.inc
===================================================================
--- lib/Support/Windows/Process.inc
+++ lib/Support/Windows/Process.inc
@@ -154,7 +154,7 @@
 Optional<std::string> Process::GetEnv(StringRef Name) {
   // Convert the argument to UTF-16 to pass it to _wgetenv().
   SmallVector<wchar_t, 128> NameUTF16;
-  if (error_code ec = windows::UTF8ToUTF16(Name, NameUTF16))
+  if (windows::UTF8ToUTF16(Name, NameUTF16))
     return None;
 
   // Environment variable can be encoded in non-UTF8 encoding, and there's no
@@ -175,7 +175,7 @@
 
   // Convert the result from UTF-16 to UTF-8.
   SmallVector<char, MAX_PATH> Res;
-  if (error_code ec = windows::UTF16ToUTF8(Buf.data(), Size, Res))
+  if (windows::UTF16ToUTF8(Buf.data(), Size, Res))
     return None;
   return std::string(Res.data());
 }
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