Use the function attributes to pass along the stack protector buffer size.

Now that we have robust function attributes, don't use a command line option to
specify the stack protecto buffer size.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186217 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/CodeGen/CommandFlags.h

@@ -220,8 +220,4 @@ cl::opt<std::string> StartAfter("start-after",
                           cl::value_desc("pass-name"),
                           cl::init(""));
 
-cl::opt<unsigned>
-SSPBufferSize("stack-protector-buffer-size", cl::init(8),
-              cl::desc("Lower bound for a buffer to be considered for "
-                       "stack protection"));
 #endif