remove HTTPS Everywhere build scripts

this is being moved to https://github.com/brave/https-everywhere-builder

package.json

@@ -27,7 +27,6 @@
     "flow": "flow; test $? -eq 0 -o $? -eq 2",
     "lint": "standard",
     "postinstall": "npm run download-sync-client && webpack",
-    "preload-httpse": "node ./preload-httpse.js",
     "start-log": "node ./tools/start.js --user-data-dir=brave-development --enable-logging=stderr --v=1 --enable-extension-activity-logging --enable-sandbox-logging --enable-dcheck",
     "start": "node ./tools/start.js --user-data-dir=brave-development --enable-logging --v=0 --enable-extension-activity-logging --enable-sandbox-logging --enable-dcheck",
     "start2": "node ./tools/start.js --user-data-dir=brave-development-2 --enable-logging --v=0 --enable-extension-activity-logging --enable-sandbox-logging --enable-dcheck",
@@ -166,8 +165,7 @@
     "jsonfile": "^2.2.3",
     "less": "^2.5.3",
     "less-loader": "^2.2.1",
-    "level": "1.5.0",
-    "leveldown": "1.5.0",
+    "level": "^1.7.0",
     "mkdirp": "^0.5.1",
     "mocha": "^2.3.4",
     "mockery": "^1.7.0",