[Sema] Remove an unused forward declaration (NFC)

diff --git a/clang/include/clang/Sema/RISCVIntrinsicManager.h b/clang/include/clang/Sema/RISCVIntrinsicManager.h
index 5051002..128858b 100644 (file)
--- a/clang/include/clang/Sema/RISCVIntrinsicManager.h
+++ b/clang/include/clang/Sema/RISCVIntrinsicManager.h
@@ -15,7 +15,6 @@
 #define LLVM_CLANG_SEMA_RISCVINTRINSICMANAGER_H
 
 namespace clang {
-class Sema;
 class LookupResult;
 class IdentifierInfo;
 class Preprocessor;