Remove this.balance (automatically converted to BALANCE)

slither/core/declarations/solidity_variables.py

@@ -22,8 +22,7 @@ SOLIDITY_VARIABLES_COMPOSED = {"block.coinbase":"address",
                                "msg.sig":"bytes4",
                                "msg.value":"uint256",
                                "tx.gasprice":"uint256",
-                               "tx.origin":"address",
-                               "this.balance":"uint256"}
+                               "tx.origin":"address"}
 
 
 SOLIDITY_FUNCTIONS = {"gasleft()":['uint256'],

slither/slithir/operations/balance.py

@@ -23,4 +23,4 @@ class Balance(OperationWithLValue):
         return self._value
 
     def __str__(self):
-        return "{} -> Balance {}".format(self.lvalue, self.value)
+        return "{} -> BALANCE {}".format(self.lvalue, self.value)