[INTERNAL] Remove package.json overrides (#865)

Overrides now are redundant for productive code and may cause issues
with ceratin npm commands i.e. `npm ls --all`, altough the UI5 CLI is
fully functional.

Fixes: UI5/cli#1325

Author: d3xter666

package.json

@@ -176,8 +176,5 @@
 		"rimraf": "^6.1.3",
 		"sinon": "^21.0.2",
 		"tap-xunit": "^2.4.1"
-	},
-	"overrides": {
-		"tar": "^7.5.9"
 	}
 }