Do not call ResendWalletTransactions when reindexing, importing or on IBD

Calling ResendWalletTransactions when reindexing, importing or on IBD spams
other nodes with our old transactions, because they become unconfirmed.
Merge pull request #2259 from Criptomonedas/dontresend

Do not call ResendWalletTransactions when reindexing or importing