Remove Chrome Network timeline

"Show overview" Button Toggles the network timeline, a screenshot may helps:

Edit: Thanks for xypha's comment, the screenshot was taken at Chrome Version 52.0.2743.116 m

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Update (August 2019)

From Version 76.x.xxxx.xxx, use antanta's solution :

... via settings cog on the right -> uncheck Show overview.

If you are just trying to remove the very top part of the timeline, then you just need to click the icon with the four blocks on it, to the left of the 'Options:' text.

That will just leave the request rows left - which you can have in small or large format by toggling the request rows button (directly to the right of 'View:')

I don't think that you can remove the Network module itself as it's an integral part of the Chrome Developer tool.

HTH

For all who use Version 76.0.3809.87 of Chrome - the way to hide this timeline is via settings cog on the right -> uncheck Show overview.

The button with the bars is no longer there starting with this version.

Screenshot