chore: this rule is already enabled in rxjs strict config

Author: JasonWeinzierl

src/bhs-web-angular-app/eslint.config.mjs

@@ -195,7 +195,6 @@ export default tseslint.config(gitignore(), {
     'rxjs-x/suffix-subjects': 'warn',
     'rxjs-x/no-ignored-subscribe': 'warn',
     'rxjs-x/no-ignored-subscription': 'warn',
-    'rxjs-x/no-floating-observables': 'error',
     // #endregion RxJS
     // #region TypeScript
     // Use Array<T> for all types.