To turn off the "aggregated results" diagram after the survey, please follow the next steps:
Step 1: Choose a report, where you have a question with aggregated results, click
on the ⚙️ right side and choose the "Edit" option in a dropdown:
Step 2: Open the "Respondents and Requests" section of this report and choose the question with Aggregated results. Click on "➕ Conditions"
Step 3: Check the "Don't attach the chart with survey results" box