refactor: Remove call to ShutdownRequested from chainstate init

Use chainman.m_interrupt object instead

There is no change in behavior in this commit

src/node/chainstate.h

@@ -32,7 +32,6 @@ struct ChainstateLoadOptions {
     bool require_full_verification{true};
     int64_t check_blocks{DEFAULT_CHECKBLOCKS};
     int64_t check_level{DEFAULT_CHECKLEVEL};
-    std::function<bool()> check_interrupt;
     std::function<void()> coins_error_cb;
 };