Removes unused package.son files.

modules/RTC/package.json

-{
-    "name": "RTC",
-    "version": "0.0.1",
-    "main": "RTC.js",
-    "description": "Provedes media streams and data channels utilities for Jitsi Meet",
-    "dependencies": {
-    }
-}

modules/statistics/package.json

-{
-    "name": "statistics",
-    "version": "0.0.1",
-    "main": "statistics.js",
-    "description": "Statistics module for Jitsi Meet",
-    "dependencies": {
-    }
-}