chore: remove lerna config (#44361)

lerna.json

@@ -1,34 +0,0 @@
-{
-  "packages": [
-    "api-server",
-    "client",
-    "client/plugins/fcc-source-challenges",
-    "client/plugins/gatsby-remark-node-identity",
-    "curriculum",
-    "tools/challenge-helper-scripts",
-    "tools/challenge-parser",
-    "tools/contributor",
-    "tools/contributor/dashboard-app/client",
-    "tools/contributor/dashboard-app/server",
-    "tools/contributor/lib/",
-    "tools/contributor/one-off-scripts",
-    "tools/crowdin",
-    "tools/scripts/build",
-    "tools/scripts/seed",
-    "tools/ui-components"
-  ],
-  "command": {
-    "bootstrap": {
-      "ignore": [
-        "tools/contributor",
-        "tools/contributor/dashboard-app/client",
-        "tools/contributor/dashboard-app/server",
-        "tools/contributor/lib/",
-        "tools/contributor/one-off-scripts",
-        "tools/crowdin",
-        "tools/ui-components"
-      ]
-    }
-  },
-  "version": "independent"
-}