[clang] [libclang] Replace createRef with createDup (PR #126683)

[Erich Keane via cfe-commits]

================
@@ -77,19 +77,6 @@ CXString createDup(const char *String) {
   return Str;
 }
 
-CXString createRef(StringRef String) {
-  if (!String.data())
-    return createNull();
-
-  // If the string is empty, it might point to a position in another string
-  // while having zero length. Make sure we don't create a reference to the
-  // larger string.
-  if (String.empty())
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erichkeane wrote:

Thats only for the const char* version.  Isn't the version on line 93/80 the one that will be called instead?

https://github.com/llvm/llvm-project/pull/126683