How to remove dataflow and link dataset directly to my source (SQL server) ?

[Tejinder]

I have a few reports that are created from the same data flow. Now I have to reduce the size of my refresh to reduce CPU usage of our SQL server. 

I am using a Pro licence and upgrading to a PPU or Premium workspace is not an option. So I can not use the incremental refresh option in dataflows.

The only viable option to reduce refresh size is to use an incremental refresh in the dataset when publishing the report. 

My question is, how do I remove dataflow and link my current dataset directly to my SQL server, I don't want to recreate any reports.

[Tejinder]

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