[FRAME] Remove storage migration type (#3828)

Introduce migration type to remove data associated with a specific
storage of a pallet.

Based on existing `RemovePallet` migration type.

Required for https://github.com/paritytech/polkadot-sdk/pull/3820

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Co-authored-by: Liam Aharon <liam.aharon@hotmail.com>
Co-authored-by: Kian Paimani <5588131+kianenigma@users.noreply.github.com>