Remove an "else" that snuck in after a "return" ;)

llvm-svn: 158844
diff --git a/llvm/lib/Support/MemoryBuffer.cpp b/llvm/lib/Support/MemoryBuffer.cpp
index fabf140..3737706 100644
--- a/llvm/lib/Support/MemoryBuffer.cpp
+++ b/llvm/lib/Support/MemoryBuffer.cpp
@@ -220,7 +220,7 @@
   error_code err = sys::fs::is_directory(Filename, is_dir);
   if (err)
     return err;
-  else if (is_dir)
+  if (is_dir)
     return make_error_code(errc::is_a_directory);
 
   int OpenFlags = O_RDONLY;