Remove unused save and remove from Media

[mokagio]

Notice these unused methods during #24378. Part of #24165.

[dangermattic]

	1 Warning
⚠️	This PR is assigned to the milestone 25.9. The due date for this milestone has already passed. Please assign it to a milestone with a later deadline or check whether the release for this milestone has already been finished.

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	App Name	Jetpack
	Configuration	Release-Alpha
	Build Number	27160
	Version	PR #24416
	Bundle ID	com.jetpack.alpha
	Commit	73c6772
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