faa30a4c56 rpc: Do not wait for headers inside loadtxoutset (MarcoFalke)
Pull request description:
While the `loadtxoutset` default 10 minute timeout is convenient when it is sufficient, it may cause hassle where it is not. For example:
* When P2P connections are missing, it seems better to abort early than wait for the timeout.
* When the 10 minute timeout is not sufficient, the RPC will have to be called again, so a check or loop is needed outside the RPC either way. So might as well remove the loop inside the RPC.
ACKs for top commit:
fjahr:
ACK faa30a4c56
theStack:
Code-review ACK faa30a4c56
pablomartin4btc:
tACK faa30a4c56
TheCharlatan:
ACK faa30a4c56
Tree-SHA512: 9167c7d8b2889bb3fd369de4acd2cc4d24a2fe225018d82bd9568ecd737093f6e19be7cc62815b574137b61076a6f773c29bff75398991b5cd702423aab2322b
ba90b058bd