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

This reverts commit 3b53bfd2f7.

registry/components/beat-pulse-background/registry-item.json

@@ -1,54 +0,0 @@
-{
-  "$schema": "https://hyperframes.heygen.com/schema/registry-item.json",
-  "name": "beat-pulse-background",
-  "type": "hyperframes:component",
-  "title": "Beat Pulse Background",
-  "description": "An accent-derived backdrop pulses its glow intensity and saturation on a deterministic, supplied beat grid.",
-  "tags": ["motion-primitive", "background", "beat", "pulse", "rhythmic", "reactive"],
-  "jobs": ["emphasize"],
-  "family": "backgrounds",
-  "profile": "rhythmic",
-  "evidence": "Wave G U21 beat-pulse-background specification",
-  "files": [
-    {
-      "path": "beat-pulse-background.html",
-      "target": "compositions/components/beat-pulse-background.html",
-      "type": "hyperframes:snippet"
-    }
-  ],
-  "variables": [
-    {
-      "id": "beats",
-      "type": "string",
-      "role": "timing",
-      "label": "Beats",
-      "description": "Comma-separated beat times in seconds. Invalid entries are ignored and numeric values are clamped to the composition duration.",
-      "default": "0.5,1.0,1.5,2.0,2.5,3.0,3.5"
-    },
-    {
-      "id": "accent",
-      "type": "enum",
-      "role": "style",
-      "label": "Accent",
-      "description": "Accent token family used by the pulsing glow.",
-      "default": "green",
-      "options": [
-        { "value": "green", "label": "Green" },
-        { "value": "blue", "label": "Blue" },
-        { "value": "violet", "label": "Violet" }
-      ]
-    },
-    {
-      "id": "intensity",
-      "type": "enum",
-      "role": "style",
-      "label": "Intensity",
-      "description": "Strength of the glow and saturation pulse.",
-      "default": "subtle",
-      "options": [
-        { "value": "subtle", "label": "Subtle" },
-        { "value": "club", "label": "Club" }
-      ]
-    }
-  ]
-}