Channel should not send old data from local storage

[abaranch]

[abaranch]

May be we want to send a single trace instead of the whole batch so customer can investigate the missing data issue.

[abaranch]

We are updating channel in the scope of this: #318
This enchantments may be obsolete.

[SergeyKanzhelev]

It is implemented.

See this

// The injestion service rejects anything older than 2 days.
if (file.DateCreated > DateTimeOffset.Now.AddDays(-2)) 

PR: #326