rundler_dropLocalUserOperation
Drops a local userOperation from the bundler mempool when it has not yet been bundled.
To authorize the drop, submit a signed replacement userOperation with the same sender and nonce. The replacement must set preVerificationGas, callGasLimit, and maxFeePerGas to 0x0, set callData to 0x, keep the original initCode if one was used (otherwise 0x), and include enough verificationGasLimit for account validation. The signature must be valid for that replacement userOperation. This only removes the operation from the local mempool and does not cancel an operation that has already been bundled or propagated elsewhere.