lerna field is deprecated since v3 (#3924)

n0mer · web-flow · commit 2fce62a9545a · 2020-10-19T10:59:40.000-07:00
Remove deprecated field. Anyway, currenly project uses learna v3.22.1, not 3.10.x
diff --git a/lerna.json b/lerna.json
@@ -1,5 +1,4 @@
 {
-  "lerna": "3.10.5",
   "version": "independent",
   "npmClient": "yarn",
   "packages": [
