[sumologicexporter]: remove deprecated compression_encoding

[sumo-drosiek]

Component(s)

exporter/sumologic

Is your feature request related to a problem? Please describe.

Remove deprecated feature

Describe the solution you'd like

I would like to deprecate it in few steps:

1. inform users by printing logs about deprecation
2. Remove the configuration option few releases later

Describe alternatives you've considered

N/A

Additional context

N/A

[github-actions[bot]]

Pinging code owners for exporter/sumologic: @aboguszewski-sumo @kkujawa-sumo @mat-rumian @rnishtala-sumo @sumo-drosiek @swiatekm-sumo. See Adding Labels via Comments if you do not have permissions to add labels yourself.

[crobert-1]

Filed by code owner, removing needs triage.