Revert "feat(registry): the video-primitive moves, documented and customisable (#3090)" (#3162)

This reverts commit 3b53bfd2f7.

registry/components/beat-timeline/registry-item.json

@@ -1,52 +0,0 @@
-{
-  "$schema": "https://hyperframes.heygen.com/schema/registry-item.json",
-  "name": "beat-timeline",
-  "type": "hyperframes:component",
-  "title": "Beat Timeline",
-  "description": "A paused master-timeline orchestration spine that pins titled beat rows to evenly spaced named labels. Each row enters on its label, holds with the sequence, then exits with the group.",
-  "tags": ["orchestration", "transitions", "sequencing", "bridge", "timeline"],
-  "jobs": ["bridge"],
-  "family": "transitions",
-  "profile": "holdable",
-  "evidence": "launches-motion-vocabulary.md: Paused, seeked timeline orchestration census, 15/18 projects and 134/159 files",
-  "files": [
-    {
-      "path": "beat-timeline.html",
-      "target": "compositions/components/beat-timeline.html",
-      "type": "hyperframes:snippet"
-    }
-  ],
-  "variables": [
-    {
-      "id": "beatCount",
-      "type": "number",
-      "role": "content",
-      "label": "Beat count",
-      "description": "Number of beat rows in the sequence.",
-      "default": 4,
-      "min": 2,
-      "max": 6,
-      "step": 1
-    },
-    {
-      "id": "interval",
-      "type": "number",
-      "role": "layout",
-      "label": "Interval",
-      "description": "Base time between consecutive beat markers.",
-      "default": 0.6,
-      "min": 0.2,
-      "max": 2,
-      "step": 0.05,
-      "unit": "s"
-    },
-    {
-      "id": "labels",
-      "type": "string",
-      "role": "content",
-      "label": "Labels",
-      "description": "Comma-separated beat titles, one per beat. Extra entries are ignored and missing entries fall back to Beat N.",
-      "default": "One,Two,Three,Four"
-    }
-  ]
-}