chore(ci): remove the type-label GHA — the Gittensory review already applies the type label (#1088)

type-label.yml (Apply Gittensor reward label) duplicated what the Gittensory review already does during the review: gittensory:bug/feature/priority via resolvePrTypeLabel + ensurePullRequestLabel (auto_label_enabled on all repos). Consolidating labeling into the review removes a redundant CI step. The bot's labeling keeps its own coverage (pr-type-label.test.ts); removed the orphaned script + its test. Issue type-labeling is intentionally dropped per the operator.

Author: JSONbored