How to Remove / Hide "Powered by Blogger" (Attribution Gadget)

Settings -> Template -> Edit HTML -> Jump to widget: choose Attribution1

Change it to:

<b:widget id='Attribution1' locked='false' mobile='no' title='' type='Attribution'/>

Go to Layout, remove Attribution1 widget.

To hide: Template -> Customize ->  Advanced -> Add CSS - Paste the following code  -> Apply to Blog:
#Attribution1 {
display: none !important;
}

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