[llvm] [LV] Strip unnecessary cl::opts from headers (NFC) (PR #221891)

[Ramkumar Ramachandra via llvm-commits]

================
@@ -51,6 +51,9 @@
 
 namespace llvm {
 
+LLVM_ABI extern cl::opt<unsigned> NumberOfStoresToPredicate;
+LLVM_ABI extern cl::opt<bool> VPlanBuildOuterloopStressTest;
----------------
artagnon wrote:

Yes, a better rationale, thanks.

https://github.com/llvm/llvm-project/pull/221891