fix(build): remove ls

Author: AmitMY

.travis.yml

@@ -15,7 +15,6 @@ before_install:
 # Use yarn for faster installs
 install:
   - yarn
-  - npm ls --depth=0
 
 # Init GUI
 before_script:

package.json

@@ -47,7 +47,7 @@
 		"@turf/turf": "^4.7.3",
 		"angular-tree-component": "^6.0.0",
 		"angular2-uuid": "1.1.1",
-		"ansyn-event-drops": "^0.4.12",
+		"ansyn-event-drops": "^0.4.11",
 		"core-js": "^2.4.1",
 		"crypto-js": "^3.1.9-1",
 		"d3": "^4.11.0",