Remove Unused Code (#125)

* rm unused writeInt

* rm unused constants

packages/contracts/contracts/optimistic-ethereum/libraries/codec/Lib_OVMCodec.sol

@@ -18,9 +18,6 @@ library Lib_OVMCodec {
 
     bytes constant internal RLP_NULL_BYTES = hex'80';
     bytes constant internal NULL_BYTES = bytes('');
-    bytes32 constant internal NULL_BYTES32 = bytes32('');
-    bytes32 constant internal KECCAK256_RLP_NULL_BYTES = keccak256(RLP_NULL_BYTES);
-    bytes32 constant internal KECCAK256_NULL_BYTES = keccak256(NULL_BYTES);
 
     // Ring buffer IDs
     bytes32 constant internal RING_BUFFER_SCC_BATCHES = keccak256("RING_BUFFER_SCC_BATCHES");
@@ -31,7 +28,7 @@ library Lib_OVMCodec {
     /*********
      * Enums *
      *********/
-    
+
     enum EOASignatureType {
         EIP155_TRANSACTON,
         ETH_SIGNED_MESSAGE

packages/contracts/contracts/optimistic-ethereum/libraries/rlp/Lib_RLPWriter.sol

@@ -118,23 +118,6 @@ library Lib_RLPWriter {
         return writeBytes(_toBinary(_in));
     }
 
-    /**
-     * RLP encodes an int.
-     * @param _in The int to encode.
-     * @return _out The RLP encoded int in bytes.
-     */
-    function writeInt(
-        int _in
-    )
-        internal
-        pure
-        returns (
-            bytes memory _out
-        )
-    {
-        return writeUint(uint(_in));
-    }
-
     /**
      * RLP encodes a bool.
      * @param _in The bool to encode.

packages/contracts/contracts/test-libraries/rlp/TestLib_RLPWriter.sol

@@ -71,18 +71,6 @@ contract TestLib_RLPWriter {
         return Lib_RLPWriter.writeUint(_in);
     }
 
-    function writeInt(
-        int _in
-    )
-        public
-        pure
-        returns (
-            bytes memory _out
-        )
-    {
-        return Lib_RLPWriter.writeInt(_in);
-    }
-
     function writeBool(
         bool _in
     )

packages/contracts/test/contracts/libraries/rlp/Lib_RLPWriter.spec.ts

@@ -19,8 +19,6 @@ const encode = async (Lib_RLPWriter: Contract, input: any): Promise<void> => {
     return Lib_RLPWriter.writeList(elements)
   } else if (Number.isInteger(input)) {
     return Lib_RLPWriter.writeUint(input)
-  } else if (input[0] === '#') {
-    return Lib_RLPWriter.writeInt(input.slice(1))
   } else {
     return Lib_RLPWriter.writeString(input)
   }

packages/contracts/test/data/json/libraries/rlp/Lib_RLPWriter.test.json

@@ -68,14 +68,6 @@
       "in": 100000,
       "out": "0x830186a0"
     },
-    "mediumint4": {
-      "in": "#83729609699884896815286331701780722",
-      "out": "0x8f102030405060708090a0b0c0d0e0f2"
-    },
-    "mediumint5": {
-      "in": "#105315505618206987246253880190783558935785933862974822347068935681",
-      "out": "0x9c0100020003000400050006000700080009000a000b000c000d000e01"
-    },
     "emptylist": {
       "in": [],
       "out": "0xc0"