deleteSheet resolves a sheet, deletes it, and returns the metadata that
identified the removed tab.
Example
Inputs
spreadsheet and sheet: string | number are required. Strings match exact
titles and numbers are immutable sheet IDs. account selects the Google account.
Output
Returns the deletedSheet metadata. The operation permanently removes its
values, formatting, tables, charts, and other sheet-owned content; Google will
not let a spreadsheet have zero sheets.