libstore: drop checkInterrupt from LocalStore::verifyPath

it's only called by verifyStore, and verifyStore is only called by the
daemon and `nix-store --verify`. both pass the promise to `blockOn()`.

Change-Id: I829c0d189fa913cd8566ddd1a578c50e60fb2ddb

lix/libstore/local-store.cc

@@ -1585,8 +1585,6 @@ kj::Promise<Result<void>> LocalStore::verifyPath(
     bool & errors
 )
 try {
-    checkInterrupt();
-
     if (!done.insert(path).second) co_return result::success();
 
     if (!storePathsInStoreDir.count(path)) {
@@ -1628,7 +1626,6 @@ try {
     co_return result::current_exception();
 }
 
-
 kj::Promise<Result<unsigned int>> LocalStore::getProtocol()
 {
     return {result::success(PROTOCOL_VERSION)};