[lldb] Remove an unnecessary cast (NFC) (#152642)

type is already of lldb::SymbolType.

GitOrigin-RevId: 1a502da7084abf03f0ff3ba852b94ca217892730
diff --git a/include/lldb/Symbol/Symbol.h b/include/lldb/Symbol/Symbol.h
index 688c8a5..0674e56 100644
--- a/include/lldb/Symbol/Symbol.h
+++ b/include/lldb/Symbol/Symbol.h
@@ -167,7 +167,7 @@
 
   lldb::SymbolType GetType() const { return (lldb::SymbolType)m_type; }
 
-  void SetType(lldb::SymbolType type) { m_type = (lldb::SymbolType)type; }
+  void SetType(lldb::SymbolType type) { m_type = type; }
 
   const char *GetTypeAsString() const;