cli: Remove program arch options

[acheroncrypto]

Problem

cargo-build-bpf no longer exists, which makes the --arch option in various commands useless. It might also be confused with the --arch option of the underlying cargo-build-sbf command:

--arch <arch> Build for the given target architecture [default: v0] [possible values: v0, v1, v2, v3, v4]

Summary of changes

Remove the program --arch options from all the commands that have it.

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Related: Hardcoding build tools version (#4098) is far from ideal because:

• The user will get an error after passing -- --tools-version to the underlying command, which we support.
• Solana's build tools also control the Rust version used, meaning it may be even necessary to change this to make builds work by default (e.g. in the case of MSRV bumps, which the Rust community doesn't consider breaking)

However, this problem is out-of-scope of this PR; I might make another PR to handle this better.

[vercel]

@acheroncrypto is attempting to deploy a commit to the Solana Foundation Team on Vercel.

A member of the Team first needs to authorize it.

[jamie-osec]

Made an issue to discuss the build-tools version #4298