Remove noisy log messages like AcceptBlockHeader
According to my understanding, ERROR: AcceptBlockHeader: Consensus::CheckBlockHeader: can be excluded from log file using -debug or -debugexclude mentioned in https://github.com/bitcoin/bitcoin/pull/10123/ because it is assigned a category 'VALIDATION' in: https://github.com/bitcoin/bitcoin/blob/48c1083632687a42ac603d4f241e70616a1d3815/src/validation.cpp#L3643
Other error messages saved in logs are not assigned any category and LogPrintf is used instead of LogPrint in https://github.com/bitcoin/bitcoin/blob/48c1083632687a42ac603d4f241e70616a1d3815/src/validation.cpp#L3622