Remove obviously redundant call.

llvm-svn: 67023
diff --git a/llvm/lib/VMCore/AsmWriter.cpp b/llvm/lib/VMCore/AsmWriter.cpp
index c1cc7ba..b9ed8af 100644
--- a/llvm/lib/VMCore/AsmWriter.cpp
+++ b/llvm/lib/VMCore/AsmWriter.cpp
@@ -66,7 +66,7 @@
                                raw_ostream &Out) {
   for (unsigned i = 0; i != Length; ++i) {
     unsigned char C = Str[i];
-    if (isprint(C) && C != '\\' && C != '"' && isprint(C))
+    if (isprint(C) && C != '\\' && C != '"')
       Out << C;
     else
       Out << '\\' << hexdigit(C >> 4) << hexdigit(C & 0x0F);