chore(realtime): remove console.log spam from toJson transformer

[7ttp]

summary

removes unnecessary console.log that spams user logs when jsonb columns contain primitive string values.

problem

the toJson transformer logs JSON parse error to console whenever JSON.parse fails. this happens when jsonb columns store primitive strings. the function already handles this gracefully by returning the original value, but the console.log spams production logs.

fix

remove the console.log. the error is already handled by returning the original value.

closes #1731

cc @mandarini

[coveralls]

coverage: 95.367% (+14.1%) from 81.261%
when pulling 775221e on 7ttp:json1
into 31280b2 on supabase:master.