npm / cli / #1420

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Remove unused arguments on various function calls

I checked cli's code with Typescript using the tsconfig below. The
compiler found a few arguments that are not used, so I removed them. In
the case of `npm whoami`, it is clearer that it ignores its `args`
and instead relies on `npm.flatOptions`.

```json
{
    "compilerOptions": {
        "moduleResolution": "node",
        "module": "commonjs",
        "resolveJsonModule": true,
        "target": "es2019",
        "noImplicitAny": false,
        "noImplicitThis": true,
        "strict": true,
        "maxNodeModuleJsDepth": 0,
        "noEmit": true,
        "allowJs": true,
        "checkJs": true,
        "types": ["node"],
        "lib": ["esnext"]
    },
    "include": ["lib"]
}
```

PR-URL: https://github.com/npm/cli/pull/2766
Credit: @sandersn
Close: #2766
Reviewed-by: @nlf, @ruyadorno, @Matausi29

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