Don't mention a command line option in an error.

The program using this code may not have it.

Patch by Wilfred Hughes.

llvm-svn: 259106

llvm/lib/Support/TargetRegistry.cpp

@@ -73,8 +73,7 @@ const Target *TargetRegistry::lookupTarget(const std::string &TT,
   auto I = std::find_if(targets().begin(), targets().end(), ArchMatch);
 
   if (I == targets().end()) {
-    Error = "No available targets are compatible with this triple, "
-      "see -version for the available targets.";
+    Error = "No available targets are compatible with this triple.";
     return nullptr;
   }