Turn off blank-lines Solium rule (#1284)

* turn off blank-lines rule

* remove triple newlines

(cherry picked from commit 9b37104655)

contracts/examples/SampleCrowdsale.sol

@@ -5,7 +5,6 @@ import "../crowdsale/distribution/RefundableCrowdsale.sol";
 import "../crowdsale/emission/MintedCrowdsale.sol";
 import "../token/ERC20/ERC20Mintable.sol";
 
-
 /**
  * @title SampleCrowdsaleToken
  * @dev Very simple ERC20 Token that can be minted.
@@ -18,7 +17,6 @@ contract SampleCrowdsaleToken is ERC20Mintable {
   uint8 public constant decimals = 18;
 }
 
-
 /**
  * @title SampleCrowdsale
  * @dev This is an example of a fully fledged crowdsale.

contracts/examples/SimpleToken.sol

@@ -1,9 +1,7 @@
 pragma solidity ^0.4.24;
 
-
 import "../token/ERC20/ERC20.sol";
 
-
 /**
  * @title SimpleToken
  * @dev Very simple ERC20 Token example, where all tokens are pre-assigned to the creator.