[core/database]Repair fishing spell result fish escape

edit fish junk sql formart

Optimized code, remove some useless brackets

fix default fish result ,just like Off the coast of Storm Peaks.

cleaned the sql part  thx Kinzcool

fix todo now
Merge pull request #12046 from phoenixfight/fishmaster

Core/Fishing: Repair fishing spell result fish escape
Fixed typo, spotted by @Gooyeth
Core/PacketIO: Fixed logic in DosProtection::EvaluateOpcode