LibCpp: Remove Nonnull*PtrVector from list of known SerenityOS types

Userland/Libraries/LibCpp/Lexer.cpp

@@ -156,9 +156,7 @@ constexpr StringView s_known_types[] = {
     "NetworkOrdered"sv,
     "NeverDestroyed"sv,
     "NonnullOwnPtr"sv,
-    "NonnullOwnPtrVector"sv,
     "NonnullRefPtr"sv,
-    "NonnullRefPtrVector"sv,
     "Optional"sv,
     "OwnPtr"sv,
     "ReadonlyBytes"sv,