Remove Unused Log Facade reference in DynamoDbModel class
Remove Unused Log Facade reference in DynamoDbModel class

This commit removes the use statment for the Laravel Log facade
from the DynamoDbModel as it is not being used in that class.

zoul0813/laravel-dynamodb,baopham/laravel-dynamodb,baopham/laravel-dynamodb,zoul0813/laravel-dynamodb,baopham/laravel-dynamodb,zoul0813/laravel-dynamodb