Deprecate config SINK_HTTP_PARAMETER_SCHEMA_PROTO_CLASS

[Meghajit]

WHAT ?

Deprecate config SINK_HTTP_PARAMETER_SCHEMA_PROTO_CLASS

WHY ?

For a Firehose with HTTP Sink configured with header or query parameter source ( that is, SINK_HTTP_PARAMETER_SOURCE != disabled), the proto class that is used for parsing the incoming Kafka message during request creation is configured using SINK_HTTP_PARAMETER_SCHEMA_PROTO_CLASS.

This is confusing, as there is already a config INPUT_SCHEMA_PROTO_CLASS which tells the proto class that needs to be used for parsing the incoming Kafka message.

Ideally, we would like to keep a single variable which denotes this.