fixes bug 1387597 - Fix transaction_executor to not log benign errors (#3895)
fixes bug 1387597 - Fix transaction_executor to not log benign errors (#3895)

* fixes bug 1387597 - Fix transaction_executor to not log benign errors

* remove dryrun class

AdrianGaudebert/socorro,mozilla/socorro,AdrianGaudebert/socorro,m8ttyB/socorro,adngdb/socorro,mozilla/socorro,Tayamarn/socorro,m8ttyB/socorro,adngdb/socorro,m8ttyB/socorro,adngdb/socorro,adngdb/socorro,lonnen/socorro,adngdb/socorro,m8ttyB/socorro,lonnen/socorro,Tayamarn/socorro,AdrianGaudebert/socorro,AdrianGaudebert/socorro,AdrianGaudebert/socorro,AdrianGaudebert/socorro,Tayamarn/socorro,mozilla/socorro,mozilla/socorro,m8ttyB/socorro,lonnen/socorro,mozilla/socorro,Tayamarn/socorro,Tayamarn/socorro,adngdb/socorro,lonnen/socorro,Tayamarn/socorro,m8ttyB/socorro,mozilla/socorro