Remove a unused function form the sample shell

samples/shell.cc

Index: samples/shell.cc
===================================================================
--- samples/shell.cc	(revision 5943)
+++ samples/shell.cc	(working copy)
@@ -45,7 +45,6 @@
 v8::Handle<v8::Value> Version(const v8::Arguments& args);
 v8::Handle<v8::String> ReadFile(const char* name);
 void ReportException(v8::TryCatch* handler);
-void SetFlagsFromString(const char* flags);
 
 
 int RunMain(int argc, char* argv[]) {
@@ -345,8 +344,3 @@
     }
   }
 }
-
-
-void SetFlagsFromString(const char* flags) {
-  v8::V8::SetFlagsFromString(flags, strlen(flags));
-}