cli: remove standalone doublezero-geolocation binary

[ben-dz]

Summary of Changes

• Delete the `client/doublezero-geolocation-cli` crate (the standalone `doublezero-geolocation` binary)
• Delete the three GoReleaser configs (`release/.goreleaser.{base,devnet,testnet}.geolocation-cli.yaml`) and the dedicated release workflow (`.github/workflows/release.geolocation-cli.yml`)
• Remove `doublezero-geolocation-cli` from the Cargo workspace `members` list and strip the `geolocation-cli` matrix entry from the devnet daily and testnet tag-push release workflows

The `smartcontract/programs/doublezero-geolocation` onchain program and its workspace dependency are untouched — only the standalone CLI binary goes away.

Diff Breakdown

Category	Files	Lines (+/-)	Net
Scaffolding	7	+0 / -261	-261
Config/build	7	+0 / -153	-153
Generated	1	+0 / -15	-15
Docs	1	+1 / -0	+1
Total	16	+1 / -429	-428

Pure deletion — no new logic.

Key files (click to expand)

• `client/doublezero-geolocation-cli/src/main.rs` — entry point and subcommand dispatch (−132)
• `release/.goreleaser.base.geolocation-cli.yaml` — base GoReleaser config (−85)
• `.github/workflows/release.geolocation-cli.yml` — dedicated release workflow (−39)
• `client/doublezero-geolocation-cli/src/cli/user.rs` — user subcommand wrappers, superseded by `doublezero geolocation user` (−36)
• `client/doublezero-geolocation-cli/src/cli/probe.rs` — probe subcommand wrappers, superseded by `doublezero geolocation probe` (−30)
• `client/doublezero-geolocation-cli/Cargo.toml` — crate manifest (−26)
• `Cargo.lock` — dependency graph regen (−15)
• `Cargo.toml` — workspace member removal (−1)

Testing Verification

• `cargo check --workspace` passes cleanly after removing the crate
• `cargo test -p doublezero_cli` passes (328 tests) — confirms geolocation commands remain functional via `doublezero geolocation ...`
• `make rust-fmt && make rust-lint` pass with no warnings