Please remove the "minGasPrice" from block returns

[frozeman]

If you call with the following RPC method:

{"jsonrpc":"2.0","method":"eth_getBlockByNumber","params":["0x3",false],"id":2}

You get:

{
    "id": 2,
    "jsonrpc": "2.0",
    "result": {
        "number": "0x3",
        "hash": "0xef95f2f1ed3ca60b048b4bf67cde2195961e0bba6f70bcbea9a2c4e133e34b46",
        "parentHash": "0x2302e1c0b972d00932deb5dab9eb2982f570597d9d42504c05d9c2147eaf9c88",
        "nonce": "0xfb6e1a62d119228b",
        "sha3Uncles": "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
        "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
        "transactionsRoot": "0x3a1b03875115b79539e5bd33fb00d8f7b7cd61929d5a3c574f507b8acf415bee",
        "stateRoot": "0xf1133199d44695dfa8fd1bcfe424d82854b5cebef75bddd7e40ea94cda515bcb",
        "miner": "0x8888f1f195afa192cfee860698584c030f4c9db1",
        "difficulty": "0x20080",
        "totalDifficulty": "0x600c0",
        "size": "0x268",
        "extraData": "0x",
        "gasLimit": "0x2fefd8",
        "minGasPrice": null,
        "gasUsed": "0x549e",
        "timestamp": "0x55313309",
        "transactions": [
            "0x9fc76417374aa880d4449a1f7f31ec597f00b1f6f3dd2d66f4c9c6c445836d8b"
        ],
        "uncles": []
    }
}

Please remove minGasPrice as its not part of the specs anymore.

[obscuren]

Fixed in #763